689785702 has 4 divisors (see below), whose sum is σ = 1034678556. Its totient is φ = 344892850.

The previous prime is 689785673. The next prime is 689785729. The reversal of 689785702 is 207587986.

689785702 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 689785702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172446424 + ... + 172446427.

It is an arithmetic number, because the mean of its divisors is an integer number (258669639).

Almost surely, 2^689785702 is an apocalyptic number.

689785702 is a deficient number, since it is larger than the sum of its proper divisors (344892854).

689785702 is a wasteful number, since it uses less digits than its factorization.

689785702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344892853.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 689785702 is about 26263.7716636434. The cubic root of 689785702 is about 883.5641017893.

The spelling of 689785702 in words is "six hundred eighty-nine million, seven hundred eighty-five thousand, seven hundred two".