688382067 has 8 divisors (see below), whose sum is σ = 917993680. Its totient is φ = 458845920.

The previous prime is 688382033. The next prime is 688382083. The reversal of 688382067 is 760283886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 688382067 - 2¹¹ = 688380019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688382867) 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, 7809 + ... + 37917.

It is an arithmetic number, because the mean of its divisors is an integer number (114749210).

Almost surely, 2^688382067 is an apocalyptic number.

688382067 is a deficient number, since it is larger than the sum of its proper divisors (229611613).

688382067 is a wasteful number, since it uses less digits than its factorization.

688382067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37733.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 688382067 is about 26237.0361702689. The cubic root of 688382067 is about 882.9643775226.

The spelling of 688382067 in words is "six hundred eighty-eight million, three hundred eighty-two thousand, sixty-seven".