80706972 has 24 divisors (see below), whose sum is σ = 188496000. Its totient is φ = 26876656.

The previous prime is 80706961. The next prime is 80706991. The reversal of 80706972 is 27960708.

It is a self number, because there is not a number n which added to its sum of digits gives 80706972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13279 + ... + 18377.

It is an arithmetic number, because the mean of its divisors is an integer number (7854000).

Almost surely, 2^80706972 is an apocalyptic number.

It is an amenable number.

80706972 is an abundant number, since it is smaller than the sum of its proper divisors (107789028).

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

80706972 is a wasteful number, since it uses less digits than its factorization.

80706972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425 (or 6423 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 80706972 is about 8983.7059168252. The cubic root of 80706972 is about 432.1524881777.

The spelling of 80706972 in words is "eighty million, seven hundred six thousand, nine hundred seventy-two".