23097897 has 6 divisors (see below), whose sum is σ = 33363642. Its totient is φ = 15398592.

The previous prime is 23097881. The next prime is 23097913. The reversal of 23097897 is 79879032.

It is an interprime number because it is at equal distance from previous prime (23097881) and next prime (23097913).

It can be written as a sum of positive squares in only one way, i.e., 15280281 + 7817616 = 3909^2 + 2796^2 .

It is not a de Polignac number, because 23097897 - 2⁴ = 23097881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23097817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1283208 + ... + 1283225.

It is an arithmetic number, because the mean of its divisors is an integer number (5560607).

Almost surely, 2^23097897 is an apocalyptic number.

It is an amenable number.

23097897 is a deficient number, since it is larger than the sum of its proper divisors (10265745).

23097897 is a wasteful number, since it uses less digits than its factorization.

23097897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566439 (or 2566436 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 23097897 is about 4806.0271534813. The cubic root of 23097897 is about 284.7896138916.

The spelling of 23097897 in words is "twenty-three million, ninety-seven thousand, eight hundred ninety-seven".