694203668 has 12 divisors (see below), whose sum is σ = 1234772532. Its totient is φ = 341411520.

The previous prime is 694203667. The next prime is 694203673. The reversal of 694203668 is 866302496.

It can be written as a sum of positive squares in 2 ways, for example, as 309337744 + 384865924 = 17588^2 + 19618^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694203661) 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, 1422305 + ... + 1422792.

It is an arithmetic number, because the mean of its divisors is an integer number (102897711).

Almost surely, 2^694203668 is an apocalyptic number.

It is an amenable number.

694203668 is a deficient number, since it is larger than the sum of its proper divisors (540568864).

694203668 is a wasteful number, since it uses less digits than its factorization.

694203668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845162 (or 2845160 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 694203668 is about 26347.7450268519. The cubic root of 694203668 is about 885.4464505608.

The spelling of 694203668 in words is "six hundred ninety-four million, two hundred three thousand, six hundred sixty-eight".