23897142 has 12 divisors (see below), whose sum is σ = 51777180. Its totient is φ = 7965708.

The previous prime is 23897141. The next prime is 23897147. The reversal of 23897142 is 24179832.

It is a junction number, because it is equal to n+sod(n) for n = 23897097 and 23897106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23897141) 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, 663792 + ... + 663827.

It is an arithmetic number, because the mean of its divisors is an integer number (4314765).

Almost surely, 2^23897142 is an apocalyptic number.

23897142 is an abundant number, since it is smaller than the sum of its proper divisors (27880038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23897142 is a wasteful number, since it uses less digits than its factorization.

23897142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327627 (or 1327624 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 23897142 is about 4888.4703128893. The cubic root of 23897142 is about 288.0372492330.

The spelling of 23897142 in words is "twenty-three million, eight hundred ninety-seven thousand, one hundred forty-two".