331966789 has 8 divisors (see below), whose sum is σ = 413880768. Its totient is φ = 258675360.

The previous prime is 331966771. The next prime is 331966801. The reversal of 331966789 is 987669133.

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 331966789 - 2¹⁷ = 331835717 is a prime.

It is a super-2 number, since 2×331966789² = 220403897997941042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331966589) 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, 2155552 + ... + 2155705.

It is an arithmetic number, because the mean of its divisors is an integer number (51735096).

Almost surely, 2^331966789 is an apocalyptic number.

It is an amenable number.

331966789 is a deficient number, since it is larger than the sum of its proper divisors (81913979).

331966789 is a wasteful number, since it uses less digits than its factorization.

331966789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311275.

The product of its digits is 1469664, while the sum is 52.

The square root of 331966789 is about 18219.9557902866. The cubic root of 331966789 is about 692.4124676602.

The spelling of 331966789 in words is "three hundred thirty-one million, nine hundred sixty-six thousand, seven hundred eighty-nine".