73735913 has 4 divisors (see below), whose sum is σ = 74746068. Its totient is φ = 72725760.

The previous prime is 73735901. The next prime is 73735943. The reversal of 73735913 is 31953737.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19963024 + 53772889 = 4468^2 + 7333^2 .

It is a cyclic number.

It is not a de Polignac number, because 73735913 - 2⁴ = 73735897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73735943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504968 + ... + 505113.

It is an arithmetic number, because the mean of its divisors is an integer number (18686517).

Almost surely, 2^73735913 is an apocalyptic number.

73735913 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

73735913 is a deficient number, since it is larger than the sum of its proper divisors (1010155).

73735913 is a wasteful number, since it uses less digits than its factorization.

73735913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010154.

The product of its digits is 59535, while the sum is 38.

The square root of 73735913 is about 8586.9618026401. The cubic root of 73735913 is about 419.3336239305. Note that the first 3 decimals are identical.

The spelling of 73735913 in words is "seventy-three million, seven hundred thirty-five thousand, nine hundred thirteen".