23213087 has 2 divisors, whose sum is σ = 23213088. Its totient is φ = 23213086.

The previous prime is 23213083. The next prime is 23213131. The reversal of 23213087 is 78031232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23213087 - 2² = 23213083 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 (23213083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606543 + 11606544.

It is an arithmetic number, because the mean of its divisors is an integer number (11606544).

Almost surely, 2^23213087 is an apocalyptic number.

23213087 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213087 is an equidigital number, since it uses as much as digits as its factorization.

23213087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 23213087 is about 4817.9961602309. The cubic root of 23213087 is about 285.2622475854.

The spelling of 23213087 in words is "twenty-three million, two hundred thirteen thousand, eighty-seven".