693868442 has 8 divisors (see below), whose sum is σ = 1076692500. Its totient is φ = 334970944.

The previous prime is 693868433. The next prime is 693868459. The reversal of 693868442 is 244868396.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 643586161 + 50282281 = 25369^2 + 7091^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 5981567 + ... + 5981682.

Almost surely, 2^693868442 is an apocalyptic number.

693868442 is a deficient number, since it is larger than the sum of its proper divisors (382824058).

693868442 is a wasteful number, since it uses less digits than its factorization.

693868442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11963280.

The product of its digits is 1990656, while the sum is 50.

The square root of 693868442 is about 26341.3826896008. The cubic root of 693868442 is about 885.3039023546.

The spelling of 693868442 in words is "six hundred ninety-three million, eight hundred sixty-eight thousand, four hundred forty-two".