695418491 has 2 divisors, whose sum is σ = 695418492. Its totient is φ = 695418490.

The previous prime is 695418481. The next prime is 695418523. The reversal of 695418491 is 194814596.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 695418491 - 2²² = 691224187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (695418461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347709245 + 347709246.

It is an arithmetic number, because the mean of its divisors is an integer number (347709246).

Almost surely, 2^695418491 is an apocalyptic number.

695418491 is a deficient number, since it is larger than the sum of its proper divisors (1).

695418491 is an equidigital number, since it uses as much as digits as its factorization.

695418491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 695418491 is about 26370.7885926834. The cubic root of 695418491 is about 885.9626457932.

The spelling of 695418491 in words is "six hundred ninety-five million, four hundred eighteen thousand, four hundred ninety-one".