74732891 has 4 divisors (see below), whose sum is σ = 74854632. Its totient is φ = 74611152.

The previous prime is 74732863. The next prime is 74732893. The reversal of 74732891 is 19823747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74732891 - 2²⁶ = 7624027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74732893) 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, 59945 + ... + 61178.

It is an arithmetic number, because the mean of its divisors is an integer number (18713658).

Almost surely, 2^74732891 is an apocalyptic number.

74732891 is a deficient number, since it is larger than the sum of its proper divisors (121741).

74732891 is a wasteful number, since it uses less digits than its factorization.

74732891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121740.

The product of its digits is 84672, while the sum is 41.

The square root of 74732891 is about 8644.8187372553. The cubic root of 74732891 is about 421.2150961227.

The spelling of 74732891 in words is "seventy-four million, seven hundred thirty-two thousand, eight hundred ninety-one".