689323997 has 8 divisors (see below), whose sum is σ = 716298240. Its totient is φ = 662563440.

The previous prime is 689323991. The next prime is 689324003. The reversal of 689323997 is 799323986.

It is an interprime number because it is at equal distance from previous prime (689323991) and next prime (689324003).

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 689323997 - 2⁴ = 689323981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689323991) 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, 46829 + ... + 59762.

It is an arithmetic number, because the mean of its divisors is an integer number (89537280).

Almost surely, 2^689323997 is an apocalyptic number.

It is an amenable number.

689323997 is a deficient number, since it is larger than the sum of its proper divisors (26974243).

689323997 is a wasteful number, since it uses less digits than its factorization.

689323997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106843.

The product of its digits is 4408992, while the sum is 56.

The square root of 689323997 is about 26254.9804227693. The cubic root of 689323997 is about 883.3669212180.

The spelling of 689323997 in words is "six hundred eighty-nine million, three hundred twenty-three thousand, nine hundred ninety-seven".