377631 has 6 divisors (see below), whose sum is σ = 545480. Its totient is φ = 251748.

The previous prime is 377623. The next prime is 377633. The reversal of 377631 is 136773.

It is not a de Polignac number, because 377631 - 2³ = 377623 is a prime.

It is a super-2 number, since 2×377631² = 285210344322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 377595 and 377604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20971 + ... + 20988.

2³⁷⁷⁶³¹ is an apocalyptic number.

377631 is a deficient number, since it is larger than the sum of its proper divisors (167849).

377631 is a wasteful number, since it uses less digits than its factorization.

377631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41965 (or 41962 counting only the distinct ones).

The product of its digits is 2646, while the sum is 27.

The square root of 377631 is about 614.5168834133. The cubic root of 377631 is about 72.2807326861.

The spelling of 377631 in words is "three hundred seventy-seven thousand, six hundred thirty-one".