69920768 has 24 divisors (see below), whose sum is σ = 139811490. Its totient is φ = 34959360.

The previous prime is 69920743. The next prime is 69920789. The reversal of 69920768 is 86702996.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 10445824 = 7712^2 + 3232^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15023 + ... + 19118.

Almost surely, 2^69920768 is an apocalyptic number.

It is an amenable number.

69920768 is a deficient number, since it is larger than the sum of its proper divisors (69890722).

69920768 is an equidigital number, since it uses as much as digits as its factorization.

69920768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34163 (or 34143 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 69920768 is about 8361.8639070485. The cubic root of 69920768 is about 411.9729771449.

The spelling of 69920768 in words is "sixty-nine million, nine hundred twenty thousand, seven hundred sixty-eight".