69771972 has 48 divisors (see below), whose sum is σ = 173859840. Its totient is φ = 21725088.

The previous prime is 69771943. The next prime is 69772007. The reversal of 69771972 is 27917796.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8929 + ... + 14807.

It is an arithmetic number, because the mean of its divisors is an integer number (3622080).

Almost surely, 2^69771972 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 69771972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86929920).

69771972 is an abundant number, since it is smaller than the sum of its proper divisors (104087868).

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

69771972 is a wasteful number, since it uses less digits than its factorization.

69771972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952 (or 5950 counting only the distinct ones).

The product of its digits is 333396, while the sum is 48.

The square root of 69771972 is about 8352.9618698998. The cubic root of 69771972 is about 411.6805343902.

The spelling of 69771972 in words is "sixty-nine million, seven hundred seventy-one thousand, nine hundred seventy-two".