694128412 has 12 divisors (see below), whose sum is σ = 1216228216. Its totient is φ = 346634640.

The previous prime is 694128397. The next prime is 694128437. The reversal of 694128412 is 214821496.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 103743 + ... + 110230.

Almost surely, 2^694128412 is an apocalyptic number.

It is an amenable number.

694128412 is a deficient number, since it is larger than the sum of its proper divisors (522099804).

694128412 is a wasteful number, since it uses less digits than its factorization.

694128412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214788 (or 214786 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 694128412 is about 26346.3168583390. The cubic root of 694128412 is about 885.4144534351.

It can be divided in two parts, 6941 and 28412, that added together give a palindrome (35353).

The spelling of 694128412 in words is "six hundred ninety-four million, one hundred twenty-eight thousand, four hundred twelve".