80990472 has 16 divisors (see below), whose sum is σ = 202476240. Its totient is φ = 26996816.

The previous prime is 80990453. The next prime is 80990473. The reversal of 80990472 is 27409908.

It is a self number, because there is not a number n which added to its sum of digits gives 80990472.

It is not an unprimeable number, because it can be changed into a prime (80990473) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1687278 + ... + 1687325.

It is an arithmetic number, because the mean of its divisors is an integer number (12654765).

Almost surely, 2^80990472 is an apocalyptic number.

It is an amenable number.

80990472 is an abundant number, since it is smaller than the sum of its proper divisors (121485768).

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

80990472 is a wasteful number, since it uses less digits than its factorization.

80990472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374612 (or 3374608 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 80990472 is about 8999.4706510994. The cubic root of 80990472 is about 432.6579052987.

The spelling of 80990472 in words is "eighty million, nine hundred ninety thousand, four hundred seventy-two".