80963280 has 80 divisors (see below), whose sum is σ = 278880960. Its totient is φ = 21589632.

The previous prime is 80963251. The next prime is 80963293. The reversal of 80963280 is 8236908.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16582 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (3486012).

Almost surely, 2^80963280 is an apocalyptic number.

80963280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80963280 is an abundant number, since it is smaller than the sum of its proper divisors (197917680).

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

80963280 is a wasteful number, since it uses less digits than its factorization.

80963280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37505 (or 37493 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 80963280 is about 8997.9597687476. The cubic root of 80963280 is about 432.6094792293.

The spelling of 80963280 in words is "eighty million, nine hundred sixty-three thousand, two hundred eighty".