74579905 has 16 divisors (see below), whose sum is σ = 90881280. Its totient is φ = 58747392.

The previous prime is 74579903. The next prime is 74579917. The reversal of 74579905 is 50997547.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74579905 - 2¹ = 74579903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74579903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177786 + ... + 178204.

It is an arithmetic number, because the mean of its divisors is an integer number (5680080).

Almost surely, 2^74579905 is an apocalyptic number.

It is an amenable number.

74579905 is a deficient number, since it is larger than the sum of its proper divisors (16301375).

74579905 is a wasteful number, since it uses less digits than its factorization.

74579905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 74579905 is about 8635.9657827020. The cubic root of 74579905 is about 420.9274760681.

The spelling of 74579905 in words is "seventy-four million, five hundred seventy-nine thousand, nine hundred five".