331943797 has 12 divisors (see below), whose sum is σ = 350635180. Its totient is φ = 314189568.

The previous prime is 331943783. The next prime is 331943827. The reversal of 331943797 is 797349133.

It can be written as a sum of positive squares in 2 ways, for example, as 71250481 + 260693316 = 8441^2 + 16146^2 .

It is not a de Polignac number, because 331943797 - 2¹¹ = 331941749 is a prime.

It is a super-2 number, since 2×331943797² = 220373368733554418, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331943707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48079 + ... + 54547.

Almost surely, 2^331943797 is an apocalyptic number.

It is an amenable number.

331943797 is a deficient number, since it is larger than the sum of its proper divisors (18691383).

331943797 is an equidigital number, since it uses as much as digits as its factorization.

331943797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612 (or 6589 counting only the distinct ones).

The product of its digits is 428652, while the sum is 46.

The square root of 331943797 is about 18219.3248228358. The cubic root of 331943797 is about 692.3964818090.

The spelling of 331943797 in words is "three hundred thirty-one million, nine hundred forty-three thousand, seven hundred ninety-seven".