68766635 has 32 divisors (see below), whose sum is σ = 97517952. Its totient is φ = 45573120.

The previous prime is 68766631. The next prime is 68766641. The reversal of 68766635 is 53666786.

It is a happy number.

It is not a de Polignac number, because 68766635 - 2² = 68766631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68766635.

It is not an unprimeable number, because it can be changed into a prime (68766631) 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 31 ways as a sum of consecutive naturals, for example, 248117 + ... + 248393.

It is an arithmetic number, because the mean of its divisors is an integer number (3047436).

Almost surely, 2^68766635 is an apocalyptic number.

68766635 is a deficient number, since it is larger than the sum of its proper divisors (28751317).

68766635 is a wasteful number, since it uses less digits than its factorization.

68766635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503.

The product of its digits is 1088640, while the sum is 47.

The square root of 68766635 is about 8292.5650434591. The cubic root of 68766635 is about 409.6936736281.

The spelling of 68766635 in words is "sixty-eight million, seven hundred sixty-six thousand, six hundred thirty-five".