331641669 has 8 divisors (see below), whose sum is σ = 461414592. Its totient is φ = 211481600.

The previous prime is 331641649. The next prime is 331641677. The reversal of 331641669 is 966146133.

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 331641669 - 2¹² = 331637573 is a prime.

It is a super-2 number, since 2×331641669² = 219972393234211122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331641649) 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, 2403132 + ... + 2403269.

It is an arithmetic number, because the mean of its divisors is an integer number (57676824).

Almost surely, 2^331641669 is an apocalyptic number.

It is an amenable number.

331641669 is a deficient number, since it is larger than the sum of its proper divisors (129772923).

331641669 is a wasteful number, since it uses less digits than its factorization.

331641669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806427.

The product of its digits is 69984, while the sum is 39.

The square root of 331641669 is about 18211.0315193841. The cubic root of 331641669 is about 692.1863499878.

The spelling of 331641669 in words is "three hundred thirty-one million, six hundred forty-one thousand, six hundred sixty-nine".