972897 has 4 divisors (see below), whose sum is σ = 1297200. Its totient is φ = 648596.

The previous prime is 972887. The next prime is 972899. The reversal of 972897 is 798279.

972897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 798279 = 3 ⋅266093.

It is a cyclic number.

It is not a de Polignac number, because 972897 - 2⁶ = 972833 is a prime.

It is an Ulam number.

It is a D-number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 972897.

It is not an unprimeable number, because it can be changed into a prime (972899) 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, 162147 + ... + 162152.

It is an arithmetic number, because the mean of its divisors is an integer number (324300).

2⁹⁷²⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

972897 is a deficient number, since it is larger than the sum of its proper divisors (324303).

972897 is a wasteful number, since it uses less digits than its factorization.

972897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324302.

The product of its digits is 63504, while the sum is 42.

The square root of 972897 is about 986.3554126176. The cubic root of 972897 is about 99.0882795873.

The spelling of 972897 in words is "nine hundred seventy-two thousand, eight hundred ninety-seven".