331828681 has 8 divisors (see below), whose sum is σ = 345567744. Its totient is φ = 318279360.

The previous prime is 331828657. The next prime is 331828697. The reversal of 331828681 is 186828133.

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 331828681 - 2⁵ = 331828649 is a prime.

It is a super-2 number, since 2×331828681² = 220220547068399522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331828631) 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, 43861 + ... + 50866.

It is an arithmetic number, because the mean of its divisors is an integer number (43195968).

Almost surely, 2^331828681 is an apocalyptic number.

331828681 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

331828681 is a deficient number, since it is larger than the sum of its proper divisors (13739063).

331828681 is a wasteful number, since it uses less digits than its factorization.

331828681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94871.

The product of its digits is 55296, while the sum is 40.

The square root of 331828681 is about 18216.1653758413. The cubic root of 331828681 is about 692.3164329878.

The spelling of 331828681 in words is "three hundred thirty-one million, eight hundred twenty-eight thousand, six hundred eighty-one".