74898690 has 32 divisors (see below), whose sum is σ = 183940416. Its totient is φ = 19508160.

The previous prime is 74898689. The next prime is 74898701. The reversal of 74898690 is 9689847.

It is a happy number.

It is a super-2 number, since 2×74898690² = 11219627527432200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27741 + ... + 30320.

It is an arithmetic number, because the mean of its divisors is an integer number (5748138).

Almost surely, 2^74898690 is an apocalyptic number.

74898690 is an abundant number, since it is smaller than the sum of its proper divisors (109041726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74898690 is a wasteful number, since it uses less digits than its factorization.

74898690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58114.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 74898690 is about 8654.4029256789. The cubic root of 74898690 is about 421.5263622805.

The spelling of 74898690 in words is "seventy-four million, eight hundred ninety-eight thousand, six hundred ninety".