68839007 has 4 divisors (see below), whose sum is σ = 68883096. Its totient is φ = 68794920.

The previous prime is 68838989. The next prime is 68839013. The reversal of 68839007 is 70093886.

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

It is a cyclic number.

It is not a de Polignac number, because 68839007 - 2⁶ = 68838943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68839027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19613 + ... + 22854.

It is an arithmetic number, because the mean of its divisors is an integer number (17220774).

Almost surely, 2^68839007 is an apocalyptic number.

68839007 is a deficient number, since it is larger than the sum of its proper divisors (44089).

68839007 is a wasteful number, since it uses less digits than its factorization.

68839007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44088.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 68839007 is about 8296.9275638636. The cubic root of 68839007 is about 409.8373477369.

The spelling of 68839007 in words is "sixty-eight million, eight hundred thirty-nine thousand, seven".