69997056 has 80 divisors (see below), whose sum is σ = 188232000. Its totient is φ = 23113728.

The previous prime is 69997033. The next prime is 69997063. The reversal of 69997056 is 65079996.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305550 + ... + 305778.

It is an arithmetic number, because the mean of its divisors is an integer number (2352900).

Almost surely, 2^69997056 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 69997056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94116000).

69997056 is an abundant number, since it is smaller than the sum of its proper divisors (118234944).

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

69997056 is a wasteful number, since it uses less digits than its factorization.

69997056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 69997056 is about 8366.4243258396. The cubic root of 69997056 is about 412.1227522504.

The spelling of 69997056 in words is "sixty-nine million, nine hundred ninety-seven thousand, fifty-six".