80897497 has 4 divisors (see below), whose sum is σ = 85155280. Its totient is φ = 76639716.

The previous prime is 80897483. The next prime is 80897513. The reversal of 80897497 is 79479808.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80897497 - 2¹¹ = 80895449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80897447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128863 + ... + 2128900.

It is an arithmetic number, because the mean of its divisors is an integer number (21288820).

Almost surely, 2^80897497 is an apocalyptic number.

It is an amenable number.

80897497 is a deficient number, since it is larger than the sum of its proper divisors (4257783).

80897497 is a wasteful number, since it uses less digits than its factorization.

80897497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257782.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 80897497 is about 8994.3035861594. The cubic root of 80897497 is about 432.4922818185.

The spelling of 80897497 in words is "eighty million, eight hundred ninety-seven thousand, four hundred ninety-seven".