688288152 has 32 divisors (see below), whose sum is σ = 1726167600. Its totient is φ = 228703104.

The previous prime is 688288147. The next prime is 688288169. The reversal of 688288152 is 251882886.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37627 + ... + 52842.

Almost surely, 2^688288152 is an apocalyptic number.

It is an amenable number.

688288152 is an abundant number, since it is smaller than the sum of its proper divisors (1037879448).

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

688288152 is a wasteful number, since it uses less digits than its factorization.

688288152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90795 (or 90791 counting only the distinct ones).

The product of its digits is 491520, while the sum is 48.

The square root of 688288152 is about 26235.2463681971. The cubic root of 688288152 is about 882.9242218325.

The spelling of 688288152 in words is "six hundred eighty-eight million, two hundred eighty-eight thousand, one hundred fifty-two".