23257723 has 2 divisors, whose sum is σ = 23257724. Its totient is φ = 23257722.

The previous prime is 23257699. The next prime is 23257753. The reversal of 23257723 is 32775232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23257723 - 2¹³ = 23249531 is a prime.

It is not a weakly prime, because it can be changed into another prime (23257753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11628861 + 11628862.

It is an arithmetic number, because the mean of its divisors is an integer number (11628862).

Almost surely, 2^23257723 is an apocalyptic number.

23257723 is a deficient number, since it is larger than the sum of its proper divisors (1).

23257723 is an equidigital number, since it uses as much as digits as its factorization.

23257723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 31.

The square root of 23257723 is about 4822.6261517974. The cubic root of 23257723 is about 285.4449722853. Note that the first 3 decimals are identical.

The spelling of 23257723 in words is "twenty-three million, two hundred fifty-seven thousand, seven hundred twenty-three".