69980136 has 64 divisors (see below), whose sum is σ = 180619200. Its totient is φ = 22583808.

The previous prime is 69980117. The next prime is 69980147. The reversal of 69980136 is 63108996.

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, 103030 + ... + 103706.

It is an arithmetic number, because the mean of its divisors is an integer number (2822175).

Almost surely, 2^69980136 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 69980136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90309600).

69980136 is an abundant number, since it is smaller than the sum of its proper divisors (110639064).

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

69980136 is a wasteful number, since it uses less digits than its factorization.

69980136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 69980136 is about 8365.4130800577. The cubic root of 69980136 is about 412.0895428589.

The spelling of 69980136 in words is "sixty-nine million, nine hundred eighty thousand, one hundred thirty-six".