23427491 has 2 divisors, whose sum is σ = 23427492. Its totient is φ = 23427490.

The previous prime is 23427461. The next prime is 23427517. The reversal of 23427491 is 19472432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23427491 - 2⁶ = 23427427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23427461) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11713745 + 11713746.

It is an arithmetic number, because the mean of its divisors is an integer number (11713746).

Almost surely, 2^23427491 is an apocalyptic number.

23427491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23427491 is an equidigital number, since it uses as much as digits as its factorization.

23427491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 23427491 is about 4840.1953472975. The cubic root of 23427491 is about 286.1378172563.

The spelling of 23427491 in words is "twenty-three million, four hundred twenty-seven thousand, four hundred ninety-one".