213899713 has 2 divisors, whose sum is σ = 213899714. Its totient is φ = 213899712.

The previous prime is 213899671. The next prime is 213899717. The reversal of 213899713 is 317998312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161366209 + 52533504 = 12703^2 + 7248^2 .

It is a cyclic number.

It is not a de Polignac number, because 213899713 - 2¹⁷ = 213768641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213899713.

It is not a weakly prime, because it can be changed into another prime (213899717) 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, 106949856 + 106949857.

It is an arithmetic number, because the mean of its divisors is an integer number (106949857).

Almost surely, 2^213899713 is an apocalyptic number.

It is an amenable number.

213899713 is a deficient number, since it is larger than the sum of its proper divisors (1).

213899713 is an equidigital number, since it uses as much as digits as its factorization.

213899713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 43.

The square root of 213899713 is about 14625.3106975544. The cubic root of 213899713 is about 598.0489523802.

The spelling of 213899713 in words is "two hundred thirteen million, eight hundred ninety-nine thousand, seven hundred thirteen".