74740831 has 8 divisors (see below), whose sum is σ = 82653264. Its totient is φ = 67014720.

The previous prime is 74740829. The next prime is 74740847. The reversal of 74740831 is 13804747.

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 74740831 - 2¹ = 74740829 is a prime.

It is a super-2 number, since 2×74740831² = 11172383637141122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74740811) 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, 45736 + ... + 47341.

It is an arithmetic number, because the mean of its divisors is an integer number (10331658).

Almost surely, 2^74740831 is an apocalyptic number.

74740831 is a deficient number, since it is larger than the sum of its proper divisors (7912433).

74740831 is a wasteful number, since it uses less digits than its factorization.

74740831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93161.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 74740831 is about 8645.2779596726. The cubic root of 74740831 is about 421.2300129346.

The spelling of 74740831 in words is "seventy-four million, seven hundred forty thousand, eight hundred thirty-one".