23030857 has 2 divisors, whose sum is σ = 23030858. Its totient is φ = 23030856.

The previous prime is 23030849. The next prime is 23030873. The reversal of 23030857 is 75803032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23001616 + 29241 = 4796^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 23030857 - 2³ = 23030849 is a prime.

It is not a weakly prime, because it can be changed into another prime (23030957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515428 + 11515429.

It is an arithmetic number, because the mean of its divisors is an integer number (11515429).

Almost surely, 2^23030857 is an apocalyptic number.

It is an amenable number.

23030857 is a deficient number, since it is larger than the sum of its proper divisors (1).

23030857 is an equidigital number, since it uses as much as digits as its factorization.

23030857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 23030857 is about 4799.0475096627. The cubic root of 23030857 is about 284.5138197085.

Adding to 23030857 its reverse (75803032), we get a palindrome (98833889).

The spelling of 23030857 in words is "twenty-three million, thirty thousand, eight hundred fifty-seven".