331872079 has 16 divisors (see below), whose sum is σ = 438103296. Its totient is φ = 243388800.

The previous prime is 331872053. The next prime is 331872131. The reversal of 331872079 is 970278133.

It is a cyclic number.

It is not a de Polignac number, because 331872079 - 2¹³ = 331863887 is a prime.

It is a super-2 number, since 2×331872079² = 220278153639564482, 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 (331872049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125457 + ... + 128074.

It is an arithmetic number, because the mean of its divisors is an integer number (27381456).

Almost surely, 2^331872079 is an apocalyptic number.

331872079 is a deficient number, since it is larger than the sum of its proper divisors (106231217).

331872079 is a wasteful number, since it uses less digits than its factorization.

331872079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253566.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 331872079 is about 18217.3565316157. The cubic root of 331872079 is about 692.3466130582.

The spelling of 331872079 in words is "three hundred thirty-one million, eight hundred seventy-two thousand, seventy-nine".