331244997 has 16 divisors (see below), whose sum is σ = 445713408. Its totient is φ = 218813120.

The previous prime is 331244959. The next prime is 331245041. The reversal of 331244997 is 799442133.

It is a cyclic number.

It is not a de Polignac number, because 331244997 - 2⁶ = 331244933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331244957) 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 15 ways as a sum of consecutive naturals, for example, 166903 + ... + 168875.

It is an arithmetic number, because the mean of its divisors is an integer number (27857088).

Almost surely, 2^331244997 is an apocalyptic number.

It is an amenable number.

331244997 is a deficient number, since it is larger than the sum of its proper divisors (114468411).

331244997 is a wasteful number, since it uses less digits than its factorization.

331244997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460.

The product of its digits is 163296, while the sum is 42.

The square root of 331244997 is about 18200.1372797020. The cubic root of 331244997 is about 691.9102683888.

The spelling of 331244997 in words is "three hundred thirty-one million, two hundred forty-four thousand, nine hundred ninety-seven".