9979662 has 32 divisors (see below), whose sum is σ = 24885504. Its totient is φ = 2592000.

The previous prime is 9979643. The next prime is 9979681. The reversal of 9979662 is 2669799.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9979643) and next prime (9979681).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10339 + ... + 11262.

It is an arithmetic number, because the mean of its divisors is an integer number (777672).

Almost surely, 2^9979662 is an apocalyptic number.

9979662 is an abundant number, since it is smaller than the sum of its proper divisors (14905842).

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

9979662 is a wasteful number, since it uses less digits than its factorization.

9979662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21624.

The product of its digits is 367416, while the sum is 48.

The square root of 9979662 is about 3159.0603033181. The cubic root of 9979662 is about 215.2973135656.

The spelling of 9979662 in words is "nine million, nine hundred seventy-nine thousand, six hundred sixty-two".