331661327 has 8 divisors (see below), whose sum is σ = 333542400. Its totient is φ = 329785344.

The previous prime is 331661299. The next prime is 331661399. The reversal of 331661327 is 723166133.

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 331661327 - 2⁶ = 331661263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331661293 and 331661302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331661027) 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, 258674 + ... + 259952.

It is an arithmetic number, because the mean of its divisors is an integer number (41692800).

Almost surely, 2^331661327 is an apocalyptic number.

331661327 is a deficient number, since it is larger than the sum of its proper divisors (1881073).

331661327 is a wasteful number, since it uses less digits than its factorization.

331661327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545.

The product of its digits is 13608, while the sum is 32.

The square root of 331661327 is about 18211.5712391875. The cubic root of 331661327 is about 692.2000261245.

The spelling of 331661327 in words is "three hundred thirty-one million, six hundred sixty-one thousand, three hundred twenty-seven".