68883839 has 4 divisors (see below), whose sum is σ = 69912024. Its totient is φ = 67855656.

The previous prime is 68883809. The next prime is 68883853. The reversal of 68883839 is 93838886.

It is a happy number.

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 68883839 - 2¹⁶ = 68818303 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 (68883809) 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, 513992 + ... + 514125.

It is an arithmetic number, because the mean of its divisors is an integer number (17478006).

Almost surely, 2^68883839 is an apocalyptic number.

68883839 is a deficient number, since it is larger than the sum of its proper divisors (1028185).

68883839 is a wasteful number, since it uses less digits than its factorization.

68883839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028184.

The product of its digits is 1990656, while the sum is 53.

The square root of 68883839 is about 8299.6288471232. The cubic root of 68883839 is about 409.9262984714.

The spelling of 68883839 in words is "sixty-eight million, eight hundred eighty-three thousand, eight hundred thirty-nine".