74904913 has 2 divisors, whose sum is σ = 74904914. Its totient is φ = 74904912.

The previous prime is 74904911. The next prime is 74904919. The reversal of 74904913 is 31940947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74080449 + 824464 = 8607^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 74904913 - 2¹ = 74904911 is a prime.

It is a super-2 number, since 2×74904913² = 11221491983075138, which contains 22 as substring.

Together with 74904911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (74904911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37452456 + 37452457.

It is an arithmetic number, because the mean of its divisors is an integer number (37452457).

Almost surely, 2^74904913 is an apocalyptic number.

It is an amenable number.

74904913 is a deficient number, since it is larger than the sum of its proper divisors (1).

74904913 is an equidigital number, since it uses as much as digits as its factorization.

74904913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 74904913 is about 8654.7624461911. The cubic root of 74904913 is about 421.5380362092.

It can be divided in two parts, 7490 and 4913, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 74904913 in words is "seventy-four million, nine hundred four thousand, nine hundred thirteen".