3974631 has 8 divisors (see below), whose sum is σ = 5372400. Its totient is φ = 2613312.

The previous prime is 3974623. The next prime is 3974657. The reversal of 3974631 is 1364793.

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

It is not a de Polignac number, because 3974631 - 2³ = 3974623 is a prime.

It is a super-2 number, since 2×3974631² = 31595383172322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3974592 and 3974601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974611) 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, 8856 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (671550).

Almost surely, 2^3974631 is an apocalyptic number.

3974631 is a deficient number, since it is larger than the sum of its proper divisors (1397769).

3974631 is a wasteful number, since it uses less digits than its factorization.

3974631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18225.

The product of its digits is 13608, while the sum is 33.

The square root of 3974631 is about 1993.6476619503. The cubic root of 3974631 is about 158.4038034109.

The spelling of 3974631 in words is "three million, nine hundred seventy-four thousand, six hundred thirty-one".