69900864 has 112 divisors (see below), whose sum is σ = 210677760. Its totient is φ = 20247040.

The previous prime is 69900833. The next prime is 69900871. The reversal of 69900864 is 46800996.

It is a super-2 number, since 2×69900864² = 9772261575892992, which contains 22 as substring.

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, 47857 + ... + 49295.

Almost surely, 2^69900864 is an apocalyptic number.

69900864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69900864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105338880).

69900864 is an abundant number, since it is smaller than the sum of its proper divisors (140776896).

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

69900864 is a wasteful number, since it uses less digits than its factorization.

69900864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 69900864 is about 8360.6736570685. The cubic root of 69900864 is about 411.9338819968.

The spelling of 69900864 in words is "sixty-nine million, nine hundred thousand, eight hundred sixty-four".