694009028 has 12 divisors (see below), whose sum is σ = 1253693952. Its totient is φ = 335810760.

The previous prime is 694009021. The next prime is 694009073. The reversal of 694009028 is 820900496.

It is a junction number, because it is equal to n+sod(n) for n = 694008982 and 694009000.

It is not an unprimeable number, because it can be changed into a prime (694009021) 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, 2798300 + ... + 2798547.

It is an arithmetic number, because the mean of its divisors is an integer number (104474496).

Almost surely, 2^694009028 is an apocalyptic number.

It is an amenable number.

694009028 is a deficient number, since it is larger than the sum of its proper divisors (559684924).

694009028 is a wasteful number, since it uses less digits than its factorization.

694009028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596882 (or 5596880 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 694009028 is about 26344.0510931785. The cubic root of 694009028 is about 885.3636893507.

The spelling of 694009028 in words is "six hundred ninety-four million, nine thousand, twenty-eight".