80957760 has 168 divisors, whose sum is σ = 278892000. Its totient is φ = 19888128.

The previous prime is 80957753. The next prime is 80957761. The reversal of 80957760 is 6775908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80957761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161991 + ... + 162489.

Almost surely, 2^80957760 is an apocalyptic number.

80957760 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 80957760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139446000).

80957760 is an abundant number, since it is smaller than the sum of its proper divisors (197934240).

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

80957760 is a wasteful number, since it uses less digits than its factorization.

80957760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 80957760 is about 8997.6530273177. The cubic root of 80957760 is about 432.5996473705.

The spelling of 80957760 in words is "eighty million, nine hundred fifty-seven thousand, seven hundred sixty".