7640634 has 16 divisors (see below), whose sum is σ = 15314688. Its totient is φ = 2541312.

The previous prime is 7640621. The next prime is 7640681. The reversal of 7640634 is 4360467.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359 + ... + 4565.

It is an arithmetic number, because the mean of its divisors is an integer number (957168).

Almost surely, 2^7640634 is an apocalyptic number.

7640634 is an abundant number, since it is smaller than the sum of its proper divisors (7674054).

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

7640634 is a wasteful number, since it uses less digits than its factorization.

7640634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 7640634 is about 2764.1696764128. The cubic root of 7640634 is about 196.9592879702.

The spelling of 7640634 in words is "seven million, six hundred forty thousand, six hundred thirty-four".