69312216 has 64 divisors (see below), whose sum is σ = 181209600. Its totient is φ = 22071168.

The previous prime is 69312167. The next prime is 69312227. The reversal of 69312216 is 61221396.

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, 47790 + ... + 49218.

It is an arithmetic number, because the mean of its divisors is an integer number (2831400).

Almost surely, 2^69312216 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 69312216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90604800).

69312216 is an abundant number, since it is smaller than the sum of its proper divisors (111897384).

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

69312216 is a wasteful number, since it uses less digits than its factorization.

69312216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1524 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 69312216 is about 8325.3958464448. The cubic root of 69312216 is about 410.7742972560.

The spelling of 69312216 in words is "sixty-nine million, three hundred twelve thousand, two hundred sixteen".