689382953 has 4 divisors (see below), whose sum is σ = 787866240. Its totient is φ = 590899668.

The previous prime is 689382943. The next prime is 689382959. The reversal of 689382953 is 359283986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 689382953 - 2¹⁰ = 689381929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 689382895 and 689382904.

It is not an unprimeable number, because it can be changed into a prime (689382959) 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 3 ways as a sum of consecutive naturals, for example, 49241633 + ... + 49241646.

It is an arithmetic number, because the mean of its divisors is an integer number (196966560).

Almost surely, 2^689382953 is an apocalyptic number.

It is an amenable number.

689382953 is a deficient number, since it is larger than the sum of its proper divisors (98483287).

689382953 is an equidigital number, since it uses as much as digits as its factorization.

689382953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98483286.

The product of its digits is 2799360, while the sum is 53.

The square root of 689382953 is about 26256.1031571709. The cubic root of 689382953 is about 883.3921044873.

The spelling of 689382953 in words is "six hundred eighty-nine million, three hundred eighty-two thousand, nine hundred fifty-three".