69731072 has 36 divisors (see below), whose sum is σ = 139736016. Its totient is φ = 34728960.

The previous prime is 69731021. The next prime is 69731089. The reversal of 69731072 is 27013796.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107453 + ... + 108099.

It is an arithmetic number, because the mean of its divisors is an integer number (3881556).

Almost surely, 2^69731072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69731072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69868008).

69731072 is an abundant number, since it is smaller than the sum of its proper divisors (70004944).

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

69731072 is an equidigital number, since it uses as much as digits as its factorization.

69731072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 69731072 is about 8350.5132776375. The cubic root of 69731072 is about 411.6000769395.

The spelling of 69731072 in words is "sixty-nine million, seven hundred thirty-one thousand, seventy-two".