23216897 has 4 divisors (see below), whose sum is σ = 25327536. Its totient is φ = 21106260.

The previous prime is 23216881. The next prime is 23216899. The reversal of 23216897 is 79861232.

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 23216897 - 2⁴ = 23216881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23216897.

It is not an unprimeable number, because it can be changed into a prime (23216899) 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, 1055303 + ... + 1055324.

It is an arithmetic number, because the mean of its divisors is an integer number (6331884).

Almost surely, 2^23216897 is an apocalyptic number.

It is an amenable number.

23216897 is a deficient number, since it is larger than the sum of its proper divisors (2110639).

23216897 is a wasteful number, since it uses less digits than its factorization.

23216897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110638.

The product of its digits is 36288, while the sum is 38.

The square root of 23216897 is about 4818.3915366022. The cubic root of 23216897 is about 285.2778535768.

The spelling of 23216897 in words is "twenty-three million, two hundred sixteen thousand, eight hundred ninety-seven".