689880374 has 12 divisors (see below), whose sum is σ = 1050728724. Its totient is φ = 339642072.

The previous prime is 689880371. The next prime is 689880403. The reversal of 689880374 is 473088986.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689880371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302912 + ... + 305180.

It is an arithmetic number, because the mean of its divisors is an integer number (87560727).

Almost surely, 2^689880374 is an apocalyptic number.

689880374 is a deficient number, since it is larger than the sum of its proper divisors (360848350).

689880374 is an frugal number, since it uses more digits than its factorization.

689880374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 689880374 is about 26265.5739324310. The cubic root of 689880374 is about 883.6045225334.

The spelling of 689880374 in words is "six hundred eighty-nine million, eight hundred eighty thousand, three hundred seventy-four".