7662664 has 16 divisors (see below), whose sum is σ = 14565420. Its totient is φ = 3778560.

The previous prime is 7662659. The next prime is 7662667. The reversal of 7662664 is 4662667.

7662664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7452900 + 209764 = 2730^2 + 458^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7662667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5977 + ... + 7144.

Almost surely, 2^7662664 is an apocalyptic number.

It is an amenable number.

7662664 is a deficient number, since it is larger than the sum of its proper divisors (6902756).

7662664 is a wasteful number, since it uses less digits than its factorization.

7662664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13200 (or 13196 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 7662664 is about 2768.1517299455. The cubic root of 7662664 is about 197.1484018404.

The spelling of 7662664 in words is "seven million, six hundred sixty-two thousand, six hundred sixty-four".