695190493 has 2 divisors, whose sum is σ = 695190494. Its totient is φ = 695190492.

The previous prime is 695190491. The next prime is 695190499. The reversal of 695190493 is 394091596.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463024324 + 232166169 = 21518^2 + 15237^2 .

It is a cyclic number.

It is not a de Polignac number, because 695190493 - 2¹ = 695190491 is a prime.

Together with 695190491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (695190491) 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, 347595246 + 347595247.

It is an arithmetic number, because the mean of its divisors is an integer number (347595247).

Almost surely, 2^695190493 is an apocalyptic number.

It is an amenable number.

695190493 is a deficient number, since it is larger than the sum of its proper divisors (1).

695190493 is an equidigital number, since it uses as much as digits as its factorization.

695190493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 695190493 is about 26366.4653110727. The cubic root of 695190493 is about 885.8658121152.

The spelling of 695190493 in words is "six hundred ninety-five million, one hundred ninety thousand, four hundred ninety-three".