213246697 has 2 divisors, whose sum is σ = 213246698. Its totient is φ = 213246696.

The previous prime is 213246689. The next prime is 213246721. The reversal of 213246697 is 796642312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204461401 + 8785296 = 14299^2 + 2964^2 .

It is a cyclic number.

It is not a de Polignac number, because 213246697 - 2³ = 213246689 is a prime.

It is not a weakly prime, because it can be changed into another prime (213246637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106623348 + 106623349.

It is an arithmetic number, because the mean of its divisors is an integer number (106623349).

Almost surely, 2^213246697 is an apocalyptic number.

It is an amenable number.

213246697 is a deficient number, since it is larger than the sum of its proper divisors (1).

213246697 is an equidigital number, since it uses as much as digits as its factorization.

213246697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 213246697 is about 14602.9687735063. The cubic root of 213246697 is about 597.4397359900.

The spelling of 213246697 in words is "two hundred thirteen million, two hundred forty-six thousand, six hundred ninety-seven".