694993853 has 4 divisors (see below), whose sum is σ = 695414940. Its totient is φ = 694572768.

The previous prime is 694993843. The next prime is 694993861. The reversal of 694993853 is 358399496.

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

It can be written as a sum of positive squares in 2 ways, for example, as 226141444 + 468852409 = 15038^2 + 21653^2 .

It is a cyclic number.

It is not a de Polignac number, because 694993853 - 2¹⁴ = 694977469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694993843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208058 + ... + 211371.

It is an arithmetic number, because the mean of its divisors is an integer number (173853735).

Almost surely, 2^694993853 is an apocalyptic number.

It is an amenable number.

694993853 is a deficient number, since it is larger than the sum of its proper divisors (421087).

694993853 is a wasteful number, since it uses less digits than its factorization.

694993853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421086.

The product of its digits is 6298560, while the sum is 56.

The square root of 694993853 is about 26362.7360681702. The cubic root of 694993853 is about 885.7822795765.

The spelling of 694993853 in words is "six hundred ninety-four million, nine hundred ninety-three thousand, eight hundred fifty-three".