80681952 has 72 divisors (see below), whose sum is σ = 229380984. Its totient is φ = 24820224.

The previous prime is 80681897. The next prime is 80681987. The reversal of 80681952 is 25918608.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 80681952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13738 + ... + 18710.

It is an arithmetic number, because the mean of its divisors is an integer number (3185847).

Almost surely, 2^80681952 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 80681952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114690492).

80681952 is an abundant number, since it is smaller than the sum of its proper divisors (148699032).

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

80681952 is a wasteful number, since it uses less digits than its factorization.

80681952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 80681952 is about 8982.3132877895. The cubic root of 80681952 is about 432.1078263081.

The spelling of 80681952 in words is "eighty million, six hundred eighty-one thousand, nine hundred fifty-two".