689039699 has 8 divisors (see below), whose sum is σ = 730069200. Its totient is φ = 648065536.

The previous prime is 689039683. The next prime is 689039711. The reversal of 689039699 is 996930986.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 689039699 - 2⁴ = 689039683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689039639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13352 + ... + 39450.

It is an arithmetic number, because the mean of its divisors is an integer number (91258650).

Almost surely, 2^689039699 is an apocalyptic number.

689039699 is a deficient number, since it is larger than the sum of its proper divisors (41029501).

689039699 is a wasteful number, since it uses less digits than its factorization.

689039699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27669.

The product of its (nonzero) digits is 5668704, while the sum is 59.

The square root of 689039699 is about 26249.5656916453. The cubic root of 689039699 is about 883.2454621345.

The spelling of 689039699 in words is "six hundred eighty-nine million, thirty-nine thousand, six hundred ninety-nine".