213623369 has 2 divisors, whose sum is σ = 213623370. Its totient is φ = 213623368.

The previous prime is 213623357. The next prime is 213623381. The reversal of 213623369 is 963326312.

213623369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (213623357) and next prime (213623381).

It can be written as a sum of positive squares in only one way, i.e., 171217225 + 42406144 = 13085^2 + 6512^2 .

It is a cyclic number.

It is not a de Polignac number, because 213623369 - 2⁴ = 213623353 is a prime.

It is a super-2 number, since 2×213623369² = 91269887565820322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213623569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106811684 + 106811685.

It is an arithmetic number, because the mean of its divisors is an integer number (106811685).

Almost surely, 2^213623369 is an apocalyptic number.

It is an amenable number.

213623369 is a deficient number, since it is larger than the sum of its proper divisors (1).

213623369 is an equidigital number, since it uses as much as digits as its factorization.

213623369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 35.

The square root of 213623369 is about 14615.8601867971. The cubic root of 213623369 is about 597.7912950885.

The spelling of 213623369 in words is "two hundred thirteen million, six hundred twenty-three thousand, three hundred sixty-nine".