80636328 has 24 divisors (see below), whose sum is σ = 218390250. Its totient is φ = 26878752.

The previous prime is 80636317. The next prime is 80636329. The reversal of 80636328 is 82363608.

It can be written as a sum of positive squares in only one way, i.e., 58339044 + 22297284 = 7638^2 + 4722^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 80636292 and 80636301.

It is not an unprimeable number, because it can be changed into a prime (80636329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559903 + ... + 560046.

Almost surely, 2^80636328 is an apocalyptic number.

It is an amenable number.

80636328 is an abundant number, since it is smaller than the sum of its proper divisors (137753922).

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

80636328 is a wasteful number, since it uses less digits than its factorization.

80636328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119961 (or 1119954 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 80636328 is about 8979.7732710798. The cubic root of 80636328 is about 432.0263615601.

The spelling of 80636328 in words is "eighty million, six hundred thirty-six thousand, three hundred twenty-eight".