74910731 has 8 divisors (see below), whose sum is σ = 87700704. Its totient is φ = 62642880.

The previous prime is 74910713. The next prime is 74910733. The reversal of 74910731 is 13701947.

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 74910731 - 2²⁶ = 7801867 is a prime.

It is a super-2 number, since 2×74910731² = 11223235237908722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74910733) 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, 130220 + ... + 130793.

It is an arithmetic number, because the mean of its divisors is an integer number (10962588).

Almost surely, 2^74910731 is an apocalyptic number.

74910731 is a deficient number, since it is larger than the sum of its proper divisors (12789973).

74910731 is a wasteful number, since it uses less digits than its factorization.

74910731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261061.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 74910731 is about 8655.0985551870. The cubic root of 74910731 is about 421.5489498004.

The spelling of 74910731 in words is "seventy-four million, nine hundred ten thousand, seven hundred thirty-one".