68839502 has 4 divisors (see below), whose sum is σ = 103259256. Its totient is φ = 34419750.

The previous prime is 68839501. The next prime is 68839523. The reversal of 68839502 is 20593886.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68839502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68839501) 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 as a sum of consecutive naturals, namely, 17209874 + ... + 17209877.

It is an arithmetic number, because the mean of its divisors is an integer number (25814814).

Almost surely, 2^68839502 is an apocalyptic number.

68839502 is a deficient number, since it is larger than the sum of its proper divisors (34419754).

68839502 is a wasteful number, since it uses less digits than its factorization.

68839502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34419753.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 68839502 is about 8296.9573941295. The cubic root of 68839502 is about 409.8383300724.

The spelling of 68839502 in words is "sixty-eight million, eight hundred thirty-nine thousand, five hundred two".