74922689 has 16 divisors (see below), whose sum is σ = 83099520. Its totient is φ = 67226880.

The previous prime is 74922677. The next prime is 74922721. The reversal of 74922689 is 98622947.

It is a cyclic number.

It is not a de Polignac number, because 74922689 - 2⁸ = 74922433 is a prime.

It is a super-2 number, since 2×74922689² = 11226818653981442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74922649) 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, 40004 + ... + 41834.

It is an arithmetic number, because the mean of its divisors is an integer number (5193720).

Almost surely, 2^74922689 is an apocalyptic number.

It is an amenable number.

74922689 is a deficient number, since it is larger than the sum of its proper divisors (8176831).

74922689 is a wasteful number, since it uses less digits than its factorization.

74922689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960.

The product of its digits is 435456, while the sum is 47.

The square root of 74922689 is about 8655.7893343126. The cubic root of 74922689 is about 421.5713792266.

The spelling of 74922689 in words is "seventy-four million, nine hundred twenty-two thousand, six hundred eighty-nine".