694474659 has 12 divisors (see below), whose sum is σ = 1003396056. Its totient is φ = 462860352.

The previous prime is 694474621. The next prime is 694474661. The reversal of 694474659 is 956474496.

It is a happy number.

It is not a de Polignac number, because 694474659 - 2⁹ = 694474147 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (694475659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37147 + ... + 52619.

It is an arithmetic number, because the mean of its divisors is an integer number (83616338).

Almost surely, 2^694474659 is an apocalyptic number.

694474659 is a deficient number, since it is larger than the sum of its proper divisors (308921397).

694474659 is a wasteful number, since it uses less digits than its factorization.

694474659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20466 (or 20463 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 694474659 is about 26352.8871093852. The cubic root of 694474659 is about 885.5616505685.

The spelling of 694474659 in words is "six hundred ninety-four million, four hundred seventy-four thousand, six hundred fifty-nine".