68638294 has 8 divisors (see below), whose sum is σ = 103196520. Its totient is φ = 34239456.

The previous prime is 68638291. The next prime is 68638301. The reversal of 68638294 is 49283686.

It is a happy number.

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

It is a super-2 number, since 2×68638294² = 9422430806460872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68638291) 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 3 ways as a sum of consecutive naturals, for example, 38764 + ... + 40495.

It is an arithmetic number, because the mean of its divisors is an integer number (12899565).

Almost surely, 2^68638294 is an apocalyptic number.

68638294 is a deficient number, since it is larger than the sum of its proper divisors (34558226).

68638294 is a wasteful number, since it uses less digits than its factorization.

68638294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79694.

The product of its digits is 497664, while the sum is 46.

The square root of 68638294 is about 8284.8231121732. The cubic root of 68638294 is about 409.4386408373.

The spelling of 68638294 in words is "sixty-eight million, six hundred thirty-eight thousand, two hundred ninety-four".