3820631 has 4 divisors (see below), whose sum is σ = 4045392. Its totient is φ = 3595872.

The previous prime is 3820627. The next prime is 3820651. The reversal of 3820631 is 1360283.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3820631 - 2² = 3820627 is a prime.

It is a super-2 number, since 2×3820631² = 29194442476322, 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 = 3820597 and 3820606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820651) 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, 112355 + ... + 112388.

It is an arithmetic number, because the mean of its divisors is an integer number (1011348).

Almost surely, 2^3820631 is an apocalyptic number.

3820631 is a deficient number, since it is larger than the sum of its proper divisors (224761).

3820631 is a wasteful number, since it uses less digits than its factorization.

3820631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224760.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3820631 is about 1954.6434457466. The cubic root of 3820631 is about 156.3309732834.

The spelling of 3820631 in words is "three million, eight hundred twenty thousand, six hundred thirty-one".