69987312 has 30 divisors (see below), whose sum is σ = 195867672. Its totient is φ = 23329056.

The previous prime is 69987311. The next prime is 69987319. The reversal of 69987312 is 21378996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69987311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242868 + ... + 243155.

Almost surely, 2^69987312 is an apocalyptic number.

It is an amenable number.

69987312 is an abundant number, since it is smaller than the sum of its proper divisors (125880360).

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

69987312 is a wasteful number, since it uses less digits than its factorization.

69987312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486037 (or 486028 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 69987312 is about 8365.8419779482. The cubic root of 69987312 is about 412.1036280630.

The spelling of 69987312 in words is "sixty-nine million, nine hundred eighty-seven thousand, three hundred twelve".