331681873 has 8 divisors (see below), whose sum is σ = 348179328. Its totient is φ = 315357504.

The previous prime is 331681859. The next prime is 331681901. The reversal of 331681873 is 378186133.

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 331681873 - 2¹⁷ = 331550801 is a prime.

It is a super-2 number, since 2×331681873² = 220025729753576258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331681843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39336 + ... + 47017.

It is an arithmetic number, because the mean of its divisors is an integer number (43522416).

Almost surely, 2^331681873 is an apocalyptic number.

It is an amenable number.

331681873 is a deficient number, since it is larger than the sum of its proper divisors (16497455).

331681873 is a wasteful number, since it uses less digits than its factorization.

331681873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86543.

The product of its digits is 72576, while the sum is 40.

The square root of 331681873 is about 18212.1353223613. The cubic root of 331681873 is about 692.2143194683.

The spelling of 331681873 in words is "three hundred thirty-one million, six hundred eighty-one thousand, eight hundred seventy-three".