213596869 has 2 divisors, whose sum is σ = 213596870. Its totient is φ = 213596868.

The previous prime is 213596827. The next prime is 213596983. The reversal of 213596869 is 968695312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177235969 + 36360900 = 13313^2 + 6030^2 .

It is a cyclic number.

It is not a de Polignac number, because 213596869 - 2⁷ = 213596741 is a prime.

It is a super-2 number, since 2×213596869² = 91247244893206322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213596809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106798434 + 106798435.

It is an arithmetic number, because the mean of its divisors is an integer number (106798435).

Almost surely, 2^213596869 is an apocalyptic number.

It is an amenable number.

213596869 is a deficient number, since it is larger than the sum of its proper divisors (1).

213596869 is an equidigital number, since it uses as much as digits as its factorization.

213596869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 49.

The square root of 213596869 is about 14614.9536092319. The cubic root of 213596869 is about 597.7665753766.

The spelling of 213596869 in words is "two hundred thirteen million, five hundred ninety-six thousand, eight hundred sixty-nine".