3187972 has 12 divisors (see below), whose sum is σ = 5872720. Its totient is φ = 1510056.

The previous prime is 3187969. The next prime is 3187973. The reversal of 3187972 is 2797813.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3187973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20898 + ... + 21049.

Almost surely, 2^3187972 is an apocalyptic number.

It is an amenable number.

3187972 is a deficient number, since it is larger than the sum of its proper divisors (2684748).

3187972 is a wasteful number, since it uses less digits than its factorization.

3187972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41970 (or 41968 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 3187972 is about 1785.4892886825. The cubic root of 3187972 is about 147.1763967550.

The spelling of 3187972 in words is "three million, one hundred eighty-seven thousand, nine hundred seventy-two".