331377 has 4 divisors (see below), whose sum is σ = 441840. Its totient is φ = 220916.

The previous prime is 331369. The next prime is 331391. The reversal of 331377 is 773133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773133 = 3 ⋅257711.

It is a cyclic number.

It is not a de Polignac number, because 331377 - 2³ = 331369 is a prime.

It is a super-2 number, since 2×331377² = 219621432258, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (331307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55227 + ... + 55232.

It is an arithmetic number, because the mean of its divisors is an integer number (110460).

2³³¹³⁷⁷ is an apocalyptic number.

It is an amenable number.

331377 is a deficient number, since it is larger than the sum of its proper divisors (110463).

331377 is a wasteful number, since it uses less digits than its factorization.

331377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110462.

The product of its digits is 1323, while the sum is 24.

The square root of 331377 is about 575.6535416377. The cubic root of 331377 is about 69.2002166231.

The spelling of 331377 in words is "three hundred thirty-one thousand, three hundred seventy-seven".