3125978 has 16 divisors (see below), whose sum is σ = 4890624. Its totient is φ = 1496880.

The previous prime is 3125959. The next prime is 3125989. The reversal of 3125978 is 8795213.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7676 + ... + 8072.

It is an arithmetic number, because the mean of its divisors is an integer number (305664).

Almost surely, 2^3125978 is an apocalyptic number.

3125978 is a deficient number, since it is larger than the sum of its proper divisors (1764646).

3125978 is a wasteful number, since it uses less digits than its factorization.

3125978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 15120, while the sum is 35.

The square root of 3125978 is about 1768.0435514998. The cubic root of 3125978 is about 146.2161369964.

The spelling of 3125978 in words is "three million, one hundred twenty-five thousand, nine hundred seventy-eight".