694094563 has 2 divisors, whose sum is σ = 694094564. Its totient is φ = 694094562.

The previous prime is 694094537. The next prime is 694094623. The reversal of 694094563 is 365490496.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694094563 is a prime.

It is not a weakly prime, because it can be changed into another prime (694094363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347047281 + 347047282.

It is an arithmetic number, because the mean of its divisors is an integer number (347047282).

Almost surely, 2^694094563 is an apocalyptic number.

694094563 is a deficient number, since it is larger than the sum of its proper divisors (1).

694094563 is an equidigital number, since it uses as much as digits as its factorization.

694094563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 694094563 is about 26345.6744647010. The cubic root of 694094563 is about 885.4000608623.

The spelling of 694094563 in words is "six hundred ninety-four million, ninety-four thousand, five hundred sixty-three".