331399667 has 8 divisors (see below), whose sum is σ = 340369920. Its totient is φ = 322486920.

The previous prime is 331399609. The next prime is 331399699. The reversal of 331399667 is 766993133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331399667 - 2²⁸ = 62964211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331399067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567 + ... + 25872.

It is an arithmetic number, because the mean of its divisors is an integer number (42546240).

Almost surely, 2^331399667 is an apocalyptic number.

331399667 is a deficient number, since it is larger than the sum of its proper divisors (8970253).

331399667 is a wasteful number, since it uses less digits than its factorization.

331399667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28753.

The product of its digits is 551124, while the sum is 47.

The square root of 331399667 is about 18204.3859275725. The cubic root of 331399667 is about 692.0179440868.

The spelling of 331399667 in words is "three hundred thirty-one million, three hundred ninety-nine thousand, six hundred sixty-seven".