689080431 has 48 divisors (see below), whose sum is σ = 1087810560. Its totient is φ = 386081280.

The previous prime is 689080421. The next prime is 689080459. The reversal of 689080431 is 134080986.

It is not a de Polignac number, because 689080431 - 2⁶ = 689080367 is a prime.

It is a super-2 number, since 2×689080431² = 949663680774291522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 689080431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689080421) 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 47 ways as a sum of consecutive naturals, for example, 265900 + ... + 268478.

It is an arithmetic number, because the mean of its divisors is an integer number (22662720).

Almost surely, 2^689080431 is an apocalyptic number.

689080431 is a deficient number, since it is larger than the sum of its proper divisors (398730129).

689080431 is a wasteful number, since it uses less digits than its factorization.

689080431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656 (or 2643 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 689080431 is about 26250.3415406352. The cubic root of 689080431 is about 883.2628658948.

The spelling of 689080431 in words is "six hundred eighty-nine million, eighty thousand, four hundred thirty-one".