3964490 has 8 divisors (see below), whose sum is σ = 7136100. Its totient is φ = 1585792.

The previous prime is 3964489. The next prime is 3964507. The reversal of 3964490 is 944693.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3751969 + 212521 = 1937^2 + 461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3964490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198215 + ... + 198234.

Almost surely, 2^3964490 is an apocalyptic number.

3964490 is a deficient number, since it is larger than the sum of its proper divisors (3171610).

3964490 is a wasteful number, since it uses less digits than its factorization.

3964490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396456.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3964490 is about 1991.1027095557. The cubic root of 3964490 is about 158.2689698381.

The spelling of 3964490 in words is "three million, nine hundred sixty-four thousand, four hundred ninety".