68256634 has 4 divisors (see below), whose sum is σ = 102384954. Its totient is φ = 34128316.

The previous prime is 68256623. The next prime is 68256641. The reversal of 68256634 is 43665286.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 2241009 = 8125^2 + 1497^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17064157 + ... + 17064160.

Almost surely, 2^68256634 is an apocalyptic number.

68256634 is a deficient number, since it is larger than the sum of its proper divisors (34128320).

68256634 is a wasteful number, since it uses less digits than its factorization.

68256634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34128319.

The product of its digits is 207360, while the sum is 40.

The square root of 68256634 is about 8261.7573191180. The cubic root of 68256634 is about 408.6783417980.

The spelling of 68256634 in words is "sixty-eight million, two hundred fifty-six thousand, six hundred thirty-four".