743271169 has 9 divisors (see below), whose sum is σ = 752517507. Its totient is φ = 734138064.

The previous prime is 743271163. The next prime is 743271209. The reversal of 743271169 is 961172347.

The square root of 743271169 is 27263.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 436601025 + 306670144 = 20895^2 + 17512^2 .

It is not a de Polignac number, because 743271169 - 2⁹ = 743270657 is a prime.

It is a super-2 number, since 2×743271169² = 1104904061333253122, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (63504) is a multiple of the sum of its prime divisors (336).

It is not an unprimeable number, because it can be changed into a prime (743271163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3734932 + ... + 3735130.

Almost surely, 2^743271169 is an apocalyptic number.

743271169 is the 27263-rd square number.

743271169 is the 13632-nd centered octagonal number.

It is an amenable number.

743271169 is a deficient number, since it is larger than the sum of its proper divisors (9246338).

743271169 is an frugal number, since it uses more digits than its factorization.

743271169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 336 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The cubic root of 743271169 is about 905.8349970860.

Multiplying 743271169 by its product of digits (63504), we get a square (47200692316176 = 6870276²).

The spelling of 743271169 in words is "seven hundred forty-three million, two hundred seventy-one thousand, one hundred sixty-nine".