3664778 has 16 divisors (see below), whose sum is σ = 6048000. Its totient is φ = 1654896.

The previous prime is 3664763. The next prime is 3664781. The reversal of 3664778 is 8774663.

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, 278 + ... + 2721.

It is an arithmetic number, because the mean of its divisors is an integer number (378000).

Almost surely, 2^3664778 is an apocalyptic number.

3664778 is a deficient number, since it is larger than the sum of its proper divisors (2383222).

3664778 is a wasteful number, since it uses less digits than its factorization.

3664778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061.

The product of its digits is 169344, while the sum is 41.

The square root of 3664778 is about 1914.3609899912. The cubic root of 3664778 is about 154.1756863808.

The spelling of 3664778 in words is "three million, six hundred sixty-four thousand, seven hundred seventy-eight".