74675661 has 4 divisors (see below), whose sum is σ = 99567552. Its totient is φ = 49783772.

The previous prime is 74675617. The next prime is 74675669. The reversal of 74675661 is 16657647.

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 74675661 - 2⁶ = 74675597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74675669) 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, 12445941 + ... + 12445946.

It is an arithmetic number, because the mean of its divisors is an integer number (24891888).

Almost surely, 2^74675661 is an apocalyptic number.

It is an amenable number.

74675661 is a deficient number, since it is larger than the sum of its proper divisors (24891891).

74675661 is a wasteful number, since it uses less digits than its factorization.

74675661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24891890.

The product of its digits is 211680, while the sum is 42.

The square root of 74675661 is about 8641.5080281164. The cubic root of 74675661 is about 421.1075473326.

The spelling of 74675661 in words is "seventy-four million, six hundred seventy-five thousand, six hundred sixty-one".