74904919 has 2 divisors, whose sum is σ = 74904920. Its totient is φ = 74904918.

The previous prime is 74904913. The next prime is 74904923. The reversal of 74904919 is 91940947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74904919 - 2³ = 74904911 is a prime.

It is a super-2 number, since 2×74904919² = 11221493780793122, which contains 22 as substring.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37452459 + 37452460.

It is an arithmetic number, because the mean of its divisors is an integer number (37452460).

Almost surely, 2^74904919 is an apocalyptic number.

74904919 is a deficient number, since it is larger than the sum of its proper divisors (1).

74904919 is an equidigital number, since it uses as much as digits as its factorization.

74904919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 74904919 is about 8654.7627928211. The cubic root of 74904919 is about 421.5380474645.

The spelling of 74904919 in words is "seventy-four million, nine hundred four thousand, nine hundred nineteen".