23397970 has 8 divisors (see below), whose sum is σ = 42116364. Its totient is φ = 9359184.

The previous prime is 23397947. The next prime is 23397973. The reversal of 23397970 is 7979332.

It can be written as a sum of positive squares in 2 ways, for example, as 23203489 + 194481 = 4817^2 + 441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23397973) 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, 1169889 + ... + 1169908.

Almost surely, 2^23397970 is an apocalyptic number.

23397970 is a deficient number, since it is larger than the sum of its proper divisors (18718394).

23397970 is a wasteful number, since it uses less digits than its factorization.

23397970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339804.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 23397970 is about 4837.1448190022. The cubic root of 23397970 is about 286.0175792412.

The spelling of 23397970 in words is "twenty-three million, three hundred ninety-seven thousand, nine hundred seventy".