74872031 has 12 divisors (see below), whose sum is σ = 81916632. Its totient is φ = 68028048.

The previous prime is 74872019. The next prime is 74872033. The reversal of 74872031 is 13027847.

It is a happy number.

It is not a de Polignac number, because 74872031 - 2⁶ = 74871967 is a prime.

It is a super-2 number, since 2×74872031² = 11211642052129922, 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 (74872033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57716 + ... + 58998.

It is an arithmetic number, because the mean of its divisors is an integer number (6826386).

Almost surely, 2^74872031 is an apocalyptic number.

74872031 is a deficient number, since it is larger than the sum of its proper divisors (7044601).

74872031 is a wasteful number, since it uses less digits than its factorization.

74872031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 74872031 is about 8652.8625899179. The cubic root of 74872031 is about 421.4763444728.

Adding to 74872031 its reverse (13027847), we get a palindrome (87899878).

The spelling of 74872031 in words is "seventy-four million, eight hundred seventy-two thousand, thirty-one".