23970197 has 4 divisors (see below), whose sum is σ = 23980320. Its totient is φ = 23960076.

The previous prime is 23970181. The next prime is 23970203. The reversal of 23970197 is 79107932.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23970197 - 2⁴ = 23970181 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 23970197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23970127) 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 3 ways as a sum of consecutive naturals, for example, 608 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (5995080).

Almost surely, 2^23970197 is an apocalyptic number.

It is an amenable number.

23970197 is a deficient number, since it is larger than the sum of its proper divisors (10123).

23970197 is an equidigital number, since it uses as much as digits as its factorization.

23970197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 23970197 is about 4895.9367847226. The cubic root of 23970197 is about 288.3304663716.

The spelling of 23970197 in words is "twenty-three million, nine hundred seventy thousand, one hundred ninety-seven".