74685887 has 8 divisors (see below), whose sum is σ = 76659072. Its totient is φ = 72720000.

The previous prime is 74685857. The next prime is 74685911. The reversal of 74685887 is 78858647.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74685887 - 2⁸ = 74685631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74685857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23387 + ... + 26387.

It is an arithmetic number, because the mean of its divisors is an integer number (9582384).

Almost surely, 2^74685887 is an apocalyptic number.

74685887 is a deficient number, since it is larger than the sum of its proper divisors (1973185).

74685887 is a wasteful number, since it uses less digits than its factorization.

74685887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649.

The product of its digits is 3010560, while the sum is 53.

The square root of 74685887 is about 8642.0996869974. The cubic root of 74685887 is about 421.1267684513.

The spelling of 74685887 in words is "seventy-four million, six hundred eighty-five thousand, eight hundred eighty-seven".