80937760 has 72 divisors (see below), whose sum is σ = 196223580. Its totient is φ = 31547904.

The previous prime is 80937751. The next prime is 80937761. The reversal of 80937760 is 6773908.

It can be written as a sum of positive squares in 2 ways, for example, as 78074896 + 2862864 = 8836^2 + 1692^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (80937761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353326 + ... + 353554.

Almost surely, 2^80937760 is an apocalyptic number.

80937760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80937760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98111790).

80937760 is an abundant number, since it is smaller than the sum of its proper divisors (115285820).

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

80937760 is a wasteful number, since it uses less digits than its factorization.

80937760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 80937760 is about 8996.5415577321. The cubic root of 80937760 is about 432.5640209504.

The spelling of 80937760 in words is "eighty million, nine hundred thirty-seven thousand, seven hundred sixty".