74923905 has 32 divisors (see below), whose sum is σ = 137952000. Its totient is φ = 34013952.

The previous prime is 74923883. The next prime is 74923939. The reversal of 74923905 is 50932947.

It is not a de Polignac number, because 74923905 - 2¹⁷ = 74792833 is a prime.

It is a super-2 number, since 2×74923905² = 11227183080898050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13251 + ... + 18039.

It is an arithmetic number, because the mean of its divisors is an integer number (4311000).

Almost surely, 2^74923905 is an apocalyptic number.

It is an amenable number.

74923905 is a deficient number, since it is larger than the sum of its proper divisors (63028095).

74923905 is a wasteful number, since it uses less digits than its factorization.

74923905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 74923905 is about 8655.8595760329. The cubic root of 74923905 is about 421.5736599244.

The spelling of 74923905 in words is "seventy-four million, nine hundred twenty-three thousand, nine hundred five".