7964566 has 4 divisors (see below), whose sum is σ = 11946852. Its totient is φ = 3982282.

The previous prime is 7964563. The next prime is 7964569. The reversal of 7964566 is 6654697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6654697 = 7 ⋅950671.

It is an interprime number because it is at equal distance from previous prime (7964563) and next prime (7964569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7964563) by changing a digit.

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 as a sum of consecutive naturals, namely, 1991140 + ... + 1991143.

It is an arithmetic number, because the mean of its divisors is an integer number (2986713).

Almost surely, 2^7964566 is an apocalyptic number.

7964566 is a deficient number, since it is larger than the sum of its proper divisors (3982286).

7964566 is a wasteful number, since it uses less digits than its factorization.

7964566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982285.

The product of its digits is 272160, while the sum is 43.

The square root of 7964566 is about 2822.1562678208. The cubic root of 7964566 is about 199.7042796295.

The spelling of 7964566 in words is "seven million, nine hundred sixty-four thousand, five hundred sixty-six".