3791631 has 8 divisors (see below), whose sum is σ = 5163264. Its totient is φ = 2473880.

The previous prime is 3791569. The next prime is 3791647. The reversal of 3791631 is 1361973.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3791631 is a prime.

It is a super-2 number, since 2×3791631² = 28752931280322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3791651) 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, 13305 + ... + 13586.

It is an arithmetic number, because the mean of its divisors is an integer number (645408).

Almost surely, 2^3791631 is an apocalyptic number.

3791631 is a deficient number, since it is larger than the sum of its proper divisors (1371633).

3791631 is a wasteful number, since it uses less digits than its factorization.

3791631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26941.

The product of its digits is 3402, while the sum is 30.

The square root of 3791631 is about 1947.2110825486. The cubic root of 3791631 is about 155.9344316822.

The spelling of 3791631 in words is "three million, seven hundred ninety-one thousand, six hundred thirty-one".