80897873 has 12 divisors (see below), whose sum is σ = 96651252. Its totient is φ = 67465440.

The previous prime is 80897867. The next prime is 80897893. The reversal of 80897873 is 37879808.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 3598609 = 8792^2 + 1897^2 .

It is not a de Polignac number, because 80897873 - 2⁶ = 80897809 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20498 + ... + 24123.

It is an arithmetic number, because the mean of its divisors is an integer number (8054271).

Almost surely, 2^80897873 is an apocalyptic number.

It is an amenable number.

80897873 is a deficient number, since it is larger than the sum of its proper divisors (15753379).

80897873 is a wasteful number, since it uses less digits than its factorization.

80897873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44672 (or 44665 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 80897873 is about 8994.3244882537. The cubic root of 80897873 is about 432.4929518715.

The spelling of 80897873 in words is "eighty million, eight hundred ninety-seven thousand, eight hundred seventy-three".