7990136 has 96 divisors (see below), whose sum is σ = 20314800. Its totient is φ = 2903040.

The previous prime is 7990111. The next prime is 7990163. The reversal of 7990136 is 6310997.

It is a junction number, because it is equal to n+sod(n) for n = 7990096 and 7990105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73250 + ... + 73358.

Almost surely, 2^7990136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7990136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10157400).

7990136 is an abundant number, since it is smaller than the sum of its proper divisors (12324664).

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

7990136 is a wasteful number, since it uses less digits than its factorization.

7990136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 7990136 is about 2826.6828615888. The cubic root of 7990136 is about 199.9177661926.

The spelling of 7990136 in words is "seven million, nine hundred ninety thousand, one hundred thirty-six".