7864966 has 4 divisors (see below), whose sum is σ = 11797452. Its totient is φ = 3932482.

The previous prime is 7864957. The next prime is 7864991. The reversal of 7864966 is 6694687.

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

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, 1966240 + ... + 1966243.

It is an arithmetic number, because the mean of its divisors is an integer number (2949363).

Almost surely, 2^7864966 is an apocalyptic number.

7864966 is a deficient number, since it is larger than the sum of its proper divisors (3932486).

7864966 is a wasteful number, since it uses less digits than its factorization.

7864966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932485.

The product of its digits is 435456, while the sum is 46.

The square root of 7864966 is about 2804.4546706980. The cubic root of 7864966 is about 198.8683253063.

The spelling of 7864966 in words is "seven million, eight hundred sixty-four thousand, nine hundred sixty-six".