80697600 has 216 divisors, whose sum is σ = 296543520. Its totient is φ = 21473280.

The previous prime is 80697599. The next prime is 80697601. The reversal of 80697600 is 679608.

It is an interprime number because it is at equal distance from previous prime (80697599) and next prime (80697601).

It is a tau number, because it is divible by the number of its divisors (216).

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

It is not an unprimeable number, because it can be changed into a prime (80697601) 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 23 ways as a sum of consecutive naturals, for example, 172567 + ... + 173033.

Almost surely, 2^80697600 is an apocalyptic number.

80697600 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 80697600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148271760).

80697600 is an abundant number, since it is smaller than the sum of its proper divisors (215845920).

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

80697600 is a wasteful number, since it uses less digits than its factorization.

80697600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 80697600 is about 8983.1842906622. The cubic root of 80697600 is about 432.1357598010.

The spelling of 80697600 in words is "eighty million, six hundred ninety-seven thousand, six hundred".