74905697 has 2 divisors, whose sum is σ = 74905698. Its totient is φ = 74905696.

The previous prime is 74905681. The next prime is 74905711. The reversal of 74905697 is 79650947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72607441 + 2298256 = 8521^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 74905697 - 2⁴ = 74905681 is a prime.

It is a super-2 number, since 2×74905697² = 11221726886111618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74905627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37452848 + 37452849.

It is an arithmetic number, because the mean of its divisors is an integer number (37452849).

Almost surely, 2^74905697 is an apocalyptic number.

It is an amenable number.

74905697 is a deficient number, since it is larger than the sum of its proper divisors (1).

74905697 is an equidigital number, since it uses as much as digits as its factorization.

74905697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 74905697 is about 8654.8077390546. The cubic root of 74905697 is about 421.5395068945.

The spelling of 74905697 in words is "seventy-four million, nine hundred five thousand, six hundred ninety-seven".