331682686 has 8 divisors (see below), whose sum is σ = 514680120. Its totient is φ = 160122648.

The previous prime is 331682651. The next prime is 331682711. The reversal of 331682686 is 686286133.

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

It is a super-2 number, since 2×331682686² = 220026808384349192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2859276 + ... + 2859391.

It is an arithmetic number, because the mean of its divisors is an integer number (64335015).

Almost surely, 2^331682686 is an apocalyptic number.

331682686 is a deficient number, since it is larger than the sum of its proper divisors (182997434).

331682686 is a wasteful number, since it uses less digits than its factorization.

331682686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718698.

The product of its digits is 248832, while the sum is 43.

The square root of 331682686 is about 18212.1576426298. The cubic root of 331682686 is about 692.2148850401.

The spelling of 331682686 in words is "three hundred thirty-one million, six hundred eighty-two thousand, six hundred eighty-six".