213583889 has 2 divisors, whose sum is σ = 213583890. Its totient is φ = 213583888.

The previous prime is 213583879. The next prime is 213583919. The reversal of 213583889 is 988385312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179560000 + 34023889 = 13400^2 + 5833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213583889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213583829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106791944 + 106791945.

It is an arithmetic number, because the mean of its divisors is an integer number (106791945).

Almost surely, 2^213583889 is an apocalyptic number.

It is an amenable number.

213583889 is a deficient number, since it is larger than the sum of its proper divisors (1).

213583889 is an equidigital number, since it uses as much as digits as its factorization.

213583889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 47.

The square root of 213583889 is about 14614.5095367583. The cubic root of 213583889 is about 597.7544666359.

The spelling of 213583889 in words is "two hundred thirteen million, five hundred eighty-three thousand, eight hundred eighty-nine".