694377985 has 8 divisors (see below), whose sum is σ = 952289856. Its totient is φ = 476144880.

The previous prime is 694377977. The next prime is 694377989. The reversal of 694377985 is 589773496.

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

It is not a de Polignac number, because 694377985 - 2³ = 694377977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (694377989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9919651 + ... + 9919720.

It is an arithmetic number, because the mean of its divisors is an integer number (119036232).

Almost surely, 2^694377985 is an apocalyptic number.

It is an amenable number.

694377985 is a deficient number, since it is larger than the sum of its proper divisors (257911871).

694377985 is a wasteful number, since it uses less digits than its factorization.

694377985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19839383.

The product of its digits is 11430720, while the sum is 58.

The square root of 694377985 is about 26351.0528252668. The cubic root of 694377985 is about 885.5205572717.

The spelling of 694377985 in words is "six hundred ninety-four million, three hundred seventy-seven thousand, nine hundred eighty-five".