3964978 has 16 divisors (see below), whose sum is σ = 6335064. Its totient is φ = 1854720.

The previous prime is 3964973. The next prime is 3965021. The reversal of 3964978 is 8794693.

It can be written as a sum of positive squares in 4 ways, for example, as 1996569 + 1968409 = 1413^2 + 1403^2 .

It is not an unprimeable number, because it can be changed into a prime (3964973) 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, 9208 + ... + 9628.

Almost surely, 2^3964978 is an apocalyptic number.

3964978 is a deficient number, since it is larger than the sum of its proper divisors (2370086).

3964978 is a wasteful number, since it uses less digits than its factorization.

3964978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its digits is 326592, while the sum is 46.

The square root of 3964978 is about 1991.2252509448. The cubic root of 3964978 is about 158.2754634929.

The spelling of 3964978 in words is "three million, nine hundred sixty-four thousand, nine hundred seventy-eight".