331706897 has 8 divisors (see below), whose sum is σ = 346542144. Its totient is φ = 316906128.

The previous prime is 331706861. The next prime is 331706899. The reversal of 331706897 is 798607133.

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 331706897 - 2¹⁰ = 331705873 is a prime.

It is a super-2 number, since 2×331706897² = 220058931034737218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331706899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12143 + ... + 28475.

It is an arithmetic number, because the mean of its divisors is an integer number (43317768).

Almost surely, 2^331706897 is an apocalyptic number.

It is an amenable number.

331706897 is a deficient number, since it is larger than the sum of its proper divisors (14835247).

331706897 is a wasteful number, since it uses less digits than its factorization.

331706897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17239.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 331706897 is about 18212.8223238465. The cubic root of 331706897 is about 692.2317272486.

The spelling of 331706897 in words is "three hundred thirty-one million, seven hundred six thousand, eight hundred ninety-seven".