23047511 has 2 divisors, whose sum is σ = 23047512. Its totient is φ = 23047510.

The previous prime is 23047501. The next prime is 23047543. The reversal of 23047511 is 11574032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23047511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23047501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11523755 + 11523756.

It is an arithmetic number, because the mean of its divisors is an integer number (11523756).

Almost surely, 2^23047511 is an apocalyptic number.

23047511 is a deficient number, since it is larger than the sum of its proper divisors (1).

23047511 is an equidigital number, since it uses as much as digits as its factorization.

23047511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 23047511 is about 4800.7823320788. The cubic root of 23047511 is about 284.5823820942.

The spelling of 23047511 in words is "twenty-three million, forty-seven thousand, five hundred eleven".