9679638 has 16 divisors (see below), whose sum is σ = 19552176. Its totient is φ = 3194400.

The previous prime is 9679627. The next prime is 9679661. The reversal of 9679638 is 8369769.

It is a happy number.

9679638 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9679638² = 187390783622088, which contains 22 as substring.

It is a congruent number.

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, 7381 + ... + 8592.

It is an arithmetic number, because the mean of its divisors is an integer number (1222011).

Almost surely, 2^9679638 is an apocalyptic number.

9679638 is an abundant number, since it is smaller than the sum of its proper divisors (9872538).

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

9679638 is a wasteful number, since it uses less digits than its factorization.

9679638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16079.

The product of its digits is 489888, while the sum is 48.

The square root of 9679638 is about 3111.2116610735. The cubic root of 9679638 is about 213.1177906535.

The spelling of 9679638 in words is "nine million, six hundred seventy-nine thousand, six hundred thirty-eight".