694989 has 24 divisors (see below), whose sum is σ = 1078272. Its totient is φ = 430560.

The previous prime is 694987. The next prime is 694997. The reversal of 694989 is 989496.

It is not a de Polignac number, because 694989 - 2¹ = 694987 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694989.

It is not an unprimeable number, because it can be changed into a prime (694987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13087 + ... + 13139.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2⁶⁹⁴⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

694989 is a deficient number, since it is larger than the sum of its proper divisors (383283).

694989 is a wasteful number, since it uses less digits than its factorization.

694989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 134 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 694989 is about 833.6600026390. The cubic root of 694989 is about 88.5780217826.

The spelling of 694989 in words is "six hundred ninety-four thousand, nine hundred eighty-nine".