694381672 has 16 divisors (see below), whose sum is σ = 1304085060. Its totient is φ = 346625664.

The previous prime is 694381669. The next prime is 694381693. The reversal of 694381672 is 276183496.

It can be written as a sum of positive squares in 2 ways, for example, as 558565956 + 135815716 = 23634^2 + 11654^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65403 + ... + 75274.

Almost surely, 2^694381672 is an apocalyptic number.

It is an amenable number.

694381672 is a deficient number, since it is larger than the sum of its proper divisors (609703388).

694381672 is a wasteful number, since it uses less digits than its factorization.

694381672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141300 (or 141296 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 694381672 is about 26351.1227844280. The cubic root of 694381672 is about 885.5221245778.

The spelling of 694381672 in words is "six hundred ninety-four million, three hundred eighty-one thousand, six hundred seventy-two".