74974809 has 32 divisors (see below), whose sum is σ = 124902400. Its totient is φ = 38947392.

The previous prime is 74974799. The next prime is 74974853. The reversal of 74974809 is 90847947.

It is a happy number.

It is not a de Polignac number, because 74974809 - 2⁸ = 74974553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74974409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16242 + ... + 20340.

It is an arithmetic number, because the mean of its divisors is an integer number (3903200).

Almost surely, 2^74974809 is an apocalyptic number.

It is an amenable number.

74974809 is a deficient number, since it is larger than the sum of its proper divisors (49927591).

74974809 is a wasteful number, since it uses less digits than its factorization.

74974809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 74974809 is about 8658.7995126345. The cubic root of 74974809 is about 421.6691120031.

The spelling of 74974809 in words is "seventy-four million, nine hundred seventy-four thousand, eight hundred nine".