80897140 has 48 divisors (see below), whose sum is σ = 174992832. Its totient is φ = 31401216.

The previous prime is 80897137. The next prime is 80897183. The reversal of 80897140 is 4179808.

It is a self number, because there is not a number n which added to its sum of digits gives 80897140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97407 + ... + 98233.

It is an arithmetic number, because the mean of its divisors is an integer number (3645684).

Almost surely, 2^80897140 is an apocalyptic number.

It is an amenable number.

80897140 is an abundant number, since it is smaller than the sum of its proper divisors (94095692).

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

80897140 is a wasteful number, since it uses less digits than its factorization.

80897140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 80897140 is about 8994.2837402430. The cubic root of 80897140 is about 432.4916456225.

The spelling of 80897140 in words is "eighty million, eight hundred ninety-seven thousand, one hundred forty".