74552761 has 2 divisors, whose sum is σ = 74552762. Its totient is φ = 74552760.

The previous prime is 74552693. The next prime is 74552791. The reversal of 74552761 is 16725547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73273600 + 1279161 = 8560^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 74552761 - 2¹¹ = 74550713 is a prime.

It is a super-2 number, since 2×74552761² = 11116228345446242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74552761.

It is not a weakly prime, because it can be changed into another prime (74552791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37276380 + 37276381.

It is an arithmetic number, because the mean of its divisors is an integer number (37276381).

Almost surely, 2^74552761 is an apocalyptic number.

It is an amenable number.

74552761 is a deficient number, since it is larger than the sum of its proper divisors (1).

74552761 is an equidigital number, since it uses as much as digits as its factorization.

74552761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 74552761 is about 8634.3940725450. The cubic root of 74552761 is about 420.8764031424.

The spelling of 74552761 in words is "seventy-four million, five hundred fifty-two thousand, seven hundred sixty-one".