689859076 has 12 divisors (see below), whose sum is σ = 1248883020. Its totient is φ = 333035360.

The previous prime is 689859061. The next prime is 689859103. The reversal of 689859076 is 670958986.

It can be written as a sum of positive squares in 2 ways, for example, as 323136576 + 366722500 = 17976^2 + 19150^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 689859076.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2973415 + ... + 2973646.

It is an arithmetic number, because the mean of its divisors is an integer number (104073585).

Almost surely, 2^689859076 is an apocalyptic number.

It is an amenable number.

689859076 is a deficient number, since it is larger than the sum of its proper divisors (559023944).

689859076 is a wasteful number, since it uses less digits than its factorization.

689859076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947094 (or 5947092 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 58.

The square root of 689859076 is about 26265.1684936533. The cubic root of 689859076 is about 883.5954295546.

The spelling of 689859076 in words is "six hundred eighty-nine million, eight hundred fifty-nine thousand, seventy-six".