80931330 has 24 divisors (see below), whose sum is σ = 210421692. Its totient is φ = 21581664.

The previous prime is 80931329. The next prime is 80931353. The reversal of 80931330 is 3313908.

It can be written as a sum of positive squares in 2 ways, for example, as 73462041 + 7469289 = 8571^2 + 2733^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80931294 and 80931303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449529 + ... + 449708.

Almost surely, 2^80931330 is an apocalyptic number.

80931330 is an abundant number, since it is smaller than the sum of its proper divisors (129490362).

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

80931330 is a wasteful number, since it uses less digits than its factorization.

80931330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899250 (or 899247 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 80931330 is about 8996.1841910890. The cubic root of 80931330 is about 432.5525658096.

The spelling of 80931330 in words is "eighty million, nine hundred thirty-one thousand, three hundred thirty".