3900231 has 20 divisors (see below), whose sum is σ = 5880600. Its totient is φ = 2576016.

The previous prime is 3900227. The next prime is 3900233. The reversal of 3900231 is 1320093.

It is not a de Polignac number, because 3900231 - 2² = 3900227 is a prime.

It is a super-2 number, since 2×3900231² = 30423603706722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900233) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14365 + ... + 14633.

It is an arithmetic number, because the mean of its divisors is an integer number (294030).

Almost surely, 2^3900231 is an apocalyptic number.

3900231 is a deficient number, since it is larger than the sum of its proper divisors (1980369).

3900231 is a wasteful number, since it uses less digits than its factorization.

3900231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3900231 is about 1974.9002506456. The cubic root of 3900231 is about 157.4091993631.

The spelling of 3900231 in words is "three million, nine hundred thousand, two hundred thirty-one".