68488766 has 16 divisors (see below), whose sum is σ = 105907824. Its totient is φ = 33198144.

The previous prime is 68488759. The next prime is 68488769. The reversal of 68488766 is 66788486.

It is a happy number.

It is a super-2 number, since 2×68488766² = 9381422136405512, 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8876 + ... + 14688.

It is an arithmetic number, because the mean of its divisors is an integer number (6619239).

Almost surely, 2^68488766 is an apocalyptic number.

68488766 is a deficient number, since it is larger than the sum of its proper divisors (37419058).

68488766 is a wasteful number, since it uses less digits than its factorization.

68488766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5995.

The product of its digits is 3096576, while the sum is 53.

The square root of 68488766 is about 8275.7939800360. The cubic root of 68488766 is about 409.1411050206.

The spelling of 68488766 in words is "sixty-eight million, four hundred eighty-eight thousand, seven hundred sixty-six".