213416897 has 2 divisors, whose sum is σ = 213416898. Its totient is φ = 213416896.

The previous prime is 213416893. The next prime is 213416899. The reversal of 213416897 is 798614312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123565456 + 89851441 = 11116^2 + 9479^2 .

It is a cyclic number.

It is not a de Polignac number, because 213416897 - 2² = 213416893 is a prime.

Together with 213416899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213416893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106708448 + 106708449.

It is an arithmetic number, because the mean of its divisors is an integer number (106708449).

Almost surely, 2^213416897 is an apocalyptic number.

It is an amenable number.

213416897 is a deficient number, since it is larger than the sum of its proper divisors (1).

213416897 is an equidigital number, since it uses as much as digits as its factorization.

213416897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 213416897 is about 14608.7951933074. The cubic root of 213416897 is about 597.5986399009.

The spelling of 213416897 in words is "two hundred thirteen million, four hundred sixteen thousand, eight hundred ninety-seven".