80690688 has 160 divisors (see below), whose sum is σ = 257796000. Its totient is φ = 24772608.

The previous prime is 80690683. The next prime is 80690699. The reversal of 80690688 is 88609608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80690683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179488 + ... + 179936.

It is an arithmetic number, because the mean of its divisors is an integer number (1611225).

Almost surely, 2^80690688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80690688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128898000).

80690688 is an abundant number, since it is smaller than the sum of its proper divisors (177105312).

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

80690688 is a wasteful number, since it uses less digits than its factorization.

80690688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 80690688 is about 8982.7995636104. The cubic root of 80690688 is about 432.1234215255.

The spelling of 80690688 in words is "eighty million, six hundred ninety thousand, six hundred eighty-eight".