688885596 has 144 divisors (see below), whose sum is σ = 2070734848. Its totient is φ = 188956800.

The previous prime is 688885591. The next prime is 688885601. The reversal of 688885596 is 695588886.

It is an interprime number because it is at equal distance from previous prime (688885591) and next prime (688885601).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688885591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1273086 + ... + 1273626.

Almost surely, 2^688885596 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 688885596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035367424).

688885596 is an abundant number, since it is smaller than the sum of its proper divisors (1381849252).

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

688885596 is a wasteful number, since it uses less digits than its factorization.

688885596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 747 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 63.

The square root of 688885596 is about 26246.6301837017. The cubic root of 688885596 is about 883.1796115873.

The spelling of 688885596 in words is "six hundred eighty-eight million, eight hundred eighty-five thousand, five hundred ninety-six".