213590863 has 2 divisors, whose sum is σ = 213590864. Its totient is φ = 213590862.

The previous prime is 213590827. The next prime is 213590893. The reversal of 213590863 is 368095312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213590863 - 2²⁵ = 180036431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213590813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106795431 + 106795432.

It is an arithmetic number, because the mean of its divisors is an integer number (106795432).

Almost surely, 2^213590863 is an apocalyptic number.

213590863 is a deficient number, since it is larger than the sum of its proper divisors (1).

213590863 is an equidigital number, since it uses as much as digits as its factorization.

213590863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 213590863 is about 14614.7481333070. The cubic root of 213590863 is about 597.7609725796.

The spelling of 213590863 in words is "two hundred thirteen million, five hundred ninety thousand, eight hundred sixty-three".