7691604 has 12 divisors (see below), whose sum is σ = 17947104. Its totient is φ = 2563864.

The previous prime is 7691603. The next prime is 7691617. The reversal of 7691604 is 4061967.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7691603) 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 in 3 ways as a sum of consecutive naturals, for example, 320472 + ... + 320495.

It is an arithmetic number, because the mean of its divisors is an integer number (1495592).

Almost surely, 2^7691604 is an apocalyptic number.

It is an amenable number.

7691604 is an abundant number, since it is smaller than the sum of its proper divisors (10255500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7691604 is a wasteful number, since it uses less digits than its factorization.

7691604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640974 (or 640972 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7691604 is about 2773.3741182898. The cubic root of 7691604 is about 197.3962837371.

The spelling of 7691604 in words is "seven million, six hundred ninety-one thousand, six hundred four".