688032036 has 24 divisors (see below), whose sum is σ = 1783787040. Its totient is φ = 229343976.

The previous prime is 688032031. The next prime is 688032083. The reversal of 688032036 is 630230886.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (688032031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3185226 + ... + 3185441.

It is an arithmetic number, because the mean of its divisors is an integer number (74324460).

Almost surely, 2^688032036 is an apocalyptic number.

It is an amenable number.

688032036 is an abundant number, since it is smaller than the sum of its proper divisors (1095755004).

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

688032036 is a wasteful number, since it uses less digits than its factorization.

688032036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370680 (or 6370672 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 688032036 is about 26230.3647706241. The cubic root of 688032036 is about 882.8146945105.

The spelling of 688032036 in words is "six hundred eighty-eight million, thirty-two thousand, thirty-six".