3664478 has 4 divisors (see below), whose sum is σ = 5496720. Its totient is φ = 1832238.

The previous prime is 3664447. The next prime is 3664483. The reversal of 3664478 is 8744663.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916118 + ... + 916121.

It is an arithmetic number, because the mean of its divisors is an integer number (1374180).

Almost surely, 2^3664478 is an apocalyptic number.

3664478 is a deficient number, since it is larger than the sum of its proper divisors (1832242).

3664478 is a wasteful number, since it uses less digits than its factorization.

3664478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832241.

The product of its digits is 96768, while the sum is 38.

The square root of 3664478 is about 1914.2826332598. The cubic root of 3664478 is about 154.1714793076.

The spelling of 3664478 in words is "three million, six hundred sixty-four thousand, four hundred seventy-eight".