80897684 has 24 divisors (see below), whose sum is σ = 164078208. Its totient is φ = 34181280.

The previous prime is 80897681. The next prime is 80897699. The reversal of 80897684 is 48679808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18359 + ... + 22334.

It is an arithmetic number, because the mean of its divisors is an integer number (6836592).

Almost surely, 2^80897684 is an apocalyptic number.

It is an amenable number.

80897684 is an abundant number, since it is smaller than the sum of its proper divisors (83180524).

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

80897684 is a wasteful number, since it uses less digits than its factorization.

80897684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40775 (or 40773 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 80897684 is about 8994.3139816219. The cubic root of 80897684 is about 432.4926150632.

The spelling of 80897684 in words is "eighty million, eight hundred ninety-seven thousand, six hundred eighty-four".