3925566 has 12 divisors (see below), whose sum is σ = 8505432. Its totient is φ = 1308516.

The previous prime is 3925553. The next prime is 3925583. The reversal of 3925566 is 6655293.

3925566 is a `hidden beast` number, since 3 + 92 + 5 + 566 = 666.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3925566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109026 + ... + 109061.

It is an arithmetic number, because the mean of its divisors is an integer number (708786).

Almost surely, 2^3925566 is an apocalyptic number.

3925566 is an abundant number, since it is smaller than the sum of its proper divisors (4579866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3925566 is a wasteful number, since it uses less digits than its factorization.

3925566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218095 (or 218092 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 3925566 is about 1981.3041159802. The cubic root of 3925566 is about 157.7492952987.

The spelling of 3925566 in words is "three million, nine hundred twenty-five thousand, five hundred sixty-six".