80782272 has 70 divisors (see below), whose sum is σ = 239479328. Its totient is φ = 26925696.

The previous prime is 80782271. The next prime is 80782277. The reversal of 80782272 is 27228708.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80782271) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2608 + ... + 12975.

Almost surely, 2^80782272 is an apocalyptic number.

It is an amenable number.

80782272 is an abundant number, since it is smaller than the sum of its proper divisors (158697056).

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

80782272 is a wasteful number, since it uses less digits than its factorization.

80782272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15607 (or 15588 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 80782272 is about 8987.8958605449. The cubic root of 80782272 is about 432.2868465298.

The spelling of 80782272 in words is "eighty million, seven hundred eighty-two thousand, two hundred seventy-two".