69988716 has 144 divisors (see below), whose sum is σ = 213944640. Its totient is φ = 18869760.

The previous prime is 69988693. The next prime is 69988717. The reversal of 69988716 is 61788996.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69988717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 445710 + ... + 445866.

Almost surely, 2^69988716 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 69988716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106972320).

69988716 is an abundant number, since it is smaller than the sum of its proper divisors (143955924).

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

69988716 is a wasteful number, since it uses less digits than its factorization.

69988716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 259 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 69988716 is about 8365.9258901810. The cubic root of 69988716 is about 412.1063837511.

The spelling of 69988716 in words is "sixty-nine million, nine hundred eighty-eight thousand, seven hundred sixteen".