69992064 has 48 divisors (see below), whose sum is σ = 201412770. Its totient is φ = 23330304.

The previous prime is 69992057. The next prime is 69992099. The reversal of 69992064 is 46029996.

It can be written as a sum of positive squares in only one way, i.e., 57881664 + 12110400 = 7608^2 + 3480^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29227 + ... + 31530.

Almost surely, 2^69992064 is an apocalyptic number.

69992064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

69992064 is an abundant number, since it is smaller than the sum of its proper divisors (131420706).

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

69992064 is a wasteful number, since it uses less digits than its factorization.

69992064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60777 (or 60762 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 69992064 is about 8366.1259851857. The cubic root of 69992064 is about 412.1129548588.

The spelling of 69992064 in words is "sixty-nine million, nine hundred ninety-two thousand, sixty-four".