74097031 has 4 divisors (see below), whose sum is σ = 74119752. Its totient is φ = 74074312.

The previous prime is 74097013. The next prime is 74097061. The reversal of 74097031 is 13079047.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74097031 is a prime.

It is a super-2 number, since 2×74097031² = 10980740006029922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74096984 and 74097002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74097061) 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, 5440 + ... + 13333.

It is an arithmetic number, because the mean of its divisors is an integer number (18529938).

Almost surely, 2^74097031 is an apocalyptic number.

74097031 is a deficient number, since it is larger than the sum of its proper divisors (22721).

74097031 is a wasteful number, since it uses less digits than its factorization.

74097031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22720.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 74097031 is about 8607.9632317988. The cubic root of 74097031 is about 420.0170646884.

The spelling of 74097031 in words is "seventy-four million, ninety-seven thousand, thirty-one".