694960213 has 2 divisors, whose sum is σ = 694960214. Its totient is φ = 694960212.

The previous prime is 694960177. The next prime is 694960223. The reversal of 694960213 is 312069496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650097009 + 44863204 = 25497^2 + 6698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694960213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694960223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347480106 + 347480107.

It is an arithmetic number, because the mean of its divisors is an integer number (347480107).

Almost surely, 2^694960213 is an apocalyptic number.

It is an amenable number.

694960213 is a deficient number, since it is larger than the sum of its proper divisors (1).

694960213 is an equidigital number, since it uses as much as digits as its factorization.

694960213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 694960213 is about 26362.0980386615. The cubic root of 694960213 is about 885.7679877491.

The spelling of 694960213 in words is "six hundred ninety-four million, nine hundred sixty thousand, two hundred thirteen".