68002839 has 12 divisors (see below), whose sum is σ = 104004576. Its totient is φ = 42668352.

The previous prime is 68002829. The next prime is 68002841. The reversal of 68002839 is 93820086.

It is not a de Polignac number, because 68002839 - 2¹⁷ = 67871767 is a prime.

It is a super-2 number, since 2×68002839² = 9248772224119842, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68002829) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 222079 + ... + 222384.

It is an arithmetic number, because the mean of its divisors is an integer number (8667048).

Almost surely, 2^68002839 is an apocalyptic number.

68002839 is a deficient number, since it is larger than the sum of its proper divisors (36001737).

68002839 is a wasteful number, since it uses less digits than its factorization.

68002839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444486 (or 444483 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68002839 is about 8246.3833890985. The cubic root of 68002839 is about 408.1711904160.

The spelling of 68002839 in words is "sixty-eight million, two thousand, eight hundred thirty-nine".