3866972 has 24 divisors (see below), whose sum is σ = 7037184. Its totient is φ = 1858032.

The previous prime is 3866969. The next prime is 3866977. The reversal of 3866972 is 2796683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866977) 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, 12443 + ... + 12749.

It is an arithmetic number, because the mean of its divisors is an integer number (293216).

Almost surely, 2^3866972 is an apocalyptic number.

It is an amenable number.

3866972 is a deficient number, since it is larger than the sum of its proper divisors (3170212).

3866972 is a wasteful number, since it uses less digits than its factorization.

3866972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 423 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 3866972 is about 1966.4617972389. The cubic root of 3866972 is about 156.9604887929.

The spelling of 3866972 in words is "three million, eight hundred sixty-six thousand, nine hundred seventy-two".