74655689 has 4 divisors (see below), whose sum is σ = 74824656. Its totient is φ = 74486724.

The previous prime is 74655671. The next prime is 74655743. The reversal of 74655689 is 98655647.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74655689 - 2⁸ = 74655433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74655089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83819 + ... + 84704.

It is an arithmetic number, because the mean of its divisors is an integer number (18706164).

Almost surely, 2^74655689 is an apocalyptic number.

It is an amenable number.

74655689 is a deficient number, since it is larger than the sum of its proper divisors (168967).

74655689 is a wasteful number, since it uses less digits than its factorization.

74655689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168966.

The product of its digits is 1814400, while the sum is 50.

The square root of 74655689 is about 8640.3523654999. The cubic root of 74655689 is about 421.0700022579.

The spelling of 74655689 in words is "seventy-four million, six hundred fifty-five thousand, six hundred eighty-nine".