68488767 has 16 divisors (see below), whose sum is σ = 107434080. Its totient is φ = 42973056.

The previous prime is 68488759. The next prime is 68488769. The reversal of 68488767 is 76788486.

It is not a de Polignac number, because 68488767 - 2³ = 68488759 is a prime.

It is a super-2 number, since 2×68488767² = 9381422410360578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68488769) 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 15 ways as a sum of consecutive naturals, for example, 74148 + ... + 75065.

It is an arithmetic number, because the mean of its divisors is an integer number (6714630).

Almost surely, 2^68488767 is an apocalyptic number.

68488767 is a deficient number, since it is larger than the sum of its proper divisors (38945313).

68488767 is a wasteful number, since it uses less digits than its factorization.

68488767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149239 (or 149233 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 68488767 is about 8275.7940404532. The cubic root of 68488767 is about 409.1411070119.

The spelling of 68488767 in words is "sixty-eight million, four hundred eighty-eight thousand, seven hundred sixty-seven".