331880647 has 32 divisors (see below), whose sum is σ = 414025344. Its totient is φ = 259584000.

The previous prime is 331880641. The next prime is 331880651. The reversal of 331880647 is 746088133.

It is a cyclic number.

It is not a de Polignac number, because 331880647 - 2⁷ = 331880519 is a prime.

It is a super-2 number, since 2×331880647² = 220289527706277218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331880641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636747 + ... + 637267.

It is an arithmetic number, because the mean of its divisors is an integer number (12938292).

Almost surely, 2^331880647 is an apocalyptic number.

331880647 is a deficient number, since it is larger than the sum of its proper divisors (82144697).

331880647 is a wasteful number, since it uses less digits than its factorization.

331880647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 331880647 is about 18217.5916904513. The cubic root of 331880647 is about 692.3525711518.

The spelling of 331880647 in words is "three hundred thirty-one million, eight hundred eighty thousand, six hundred forty-seven".