694349863 has 4 divisors (see below), whose sum is σ = 702715608. Its totient is φ = 685984120.

The previous prime is 694349861. The next prime is 694349867. The reversal of 694349863 is 368943496.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 694349863 - 2¹ = 694349861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 694349863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694349861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4182748 + ... + 4182913.

It is an arithmetic number, because the mean of its divisors is an integer number (175678902).

Almost surely, 2^694349863 is an apocalyptic number.

694349863 is a deficient number, since it is larger than the sum of its proper divisors (8365745).

694349863 is an equidigital number, since it uses as much as digits as its factorization.

694349863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365744.

The product of its digits is 3359232, while the sum is 52.

The square root of 694349863 is about 26350.5192168959. The cubic root of 694349863 is about 885.5086027139.

It can be divided in two parts, 69434 and 9863, that added together give a palindrome (79297).

The spelling of 694349863 in words is "six hundred ninety-four million, three hundred forty-nine thousand, eight hundred sixty-three".