689519376 has 180 divisors, whose sum is σ = 2417743692. Its totient is φ = 181827072.

The previous prime is 689519357. The next prime is 689519393. The reversal of 689519376 is 673915986.

It can be written as a sum of positive squares in 2 ways, for example, as 392990976 + 296528400 = 19824^2 + 17220^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 87970 + ... + 95486.

Almost surely, 2^689519376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689519376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1208871846).

689519376 is an abundant number, since it is smaller than the sum of its proper divisors (1728224316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689519376 is a wasteful number, since it uses less digits than its factorization.

689519376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7558 (or 7542 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 689519376 is about 26258.7009579682. The cubic root of 689519376 is about 883.4503725620.

The spelling of 689519376 in words is "six hundred eighty-nine million, five hundred nineteen thousand, three hundred seventy-six".