69648080 has 20 divisors (see below), whose sum is σ = 161931972. Its totient is φ = 27859200.

The previous prime is 69648079. The next prime is 69648109. The reversal of 69648080 is 8084696.

It can be written as a sum of positive squares in 2 ways, for example, as 32535616 + 37112464 = 5704^2 + 6092^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 435221 + ... + 435380.

Almost surely, 2^69648080 is an apocalyptic number.

It is an amenable number.

69648080 is an abundant number, since it is smaller than the sum of its proper divisors (92283892).

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

69648080 is a wasteful number, since it uses less digits than its factorization.

69648080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870614 (or 870608 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 69648080 is about 8345.5425228082. The cubic root of 69648080 is about 411.4367204257.

The spelling of 69648080 in words is "sixty-nine million, six hundred forty-eight thousand, eighty".