69920712 has 32 divisors (see below), whose sum is σ = 194224800. Its totient is φ = 23306832.

The previous prime is 69920693. The next prime is 69920743. The reversal of 69920712 is 21702996.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 7 ways as a sum of consecutive naturals, for example, 161638 + ... + 162069.

It is an arithmetic number, because the mean of its divisors is an integer number (6069525).

Almost surely, 2^69920712 is an apocalyptic number.

It is an amenable number.

69920712 is an abundant number, since it is smaller than the sum of its proper divisors (124304088).

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

69920712 is a wasteful number, since it uses less digits than its factorization.

69920712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323722 (or 323712 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 69920712 is about 8361.8605585121. The cubic root of 69920712 is about 411.9728671609.

The spelling of 69920712 in words is "sixty-nine million, nine hundred twenty thousand, seven hundred twelve".