68886738 has 24 divisors (see below), whose sum is σ = 149420700. Its totient is φ = 22936704.

The previous prime is 68886691. The next prime is 68886749. The reversal of 68886738 is 83768886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66536649 + 2350089 = 8157^2 + 1533^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21718 + ... + 24686.

Almost surely, 2^68886738 is an apocalyptic number.

68886738 is an abundant number, since it is smaller than the sum of its proper divisors (80533962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68886738 is a wasteful number, since it uses less digits than its factorization.

68886738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4263 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 68886738 is about 8299.8034916497. The cubic root of 68886738 is about 409.9320490204.

The spelling of 68886738 in words is "sixty-eight million, eight hundred eighty-six thousand, seven hundred thirty-eight".