688667151 has 8 divisors (see below), whose sum is σ = 921538864. Its totient is φ = 457453440.

The previous prime is 688667129. The next prime is 688667153. The reversal of 688667151 is 151766886.

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

It is a de Polignac number, because none of the positive numbers 2^k-688667151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 688667151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688667153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413530 + ... + 415191.

It is an arithmetic number, because the mean of its divisors is an integer number (115192358).

Almost surely, 2^688667151 is an apocalyptic number.

688667151 is a deficient number, since it is larger than the sum of its proper divisors (232871713).

688667151 is a wasteful number, since it uses less digits than its factorization.

688667151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829001.

The product of its digits is 483840, while the sum is 48.

The square root of 688667151 is about 26242.4684623989. The cubic root of 688667151 is about 883.0862498994.

The spelling of 688667151 in words is "six hundred eighty-eight million, six hundred sixty-seven thousand, one hundred fifty-one".