68539286 has 4 divisors (see below), whose sum is σ = 102808932. Its totient is φ = 34269642.

The previous prime is 68539277. The next prime is 68539337. The reversal of 68539286 is 68293586.

It is a happy number.

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 68539286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17134820 + ... + 17134823.

It is an arithmetic number, because the mean of its divisors is an integer number (25702233).

Almost surely, 2^68539286 is an apocalyptic number.

68539286 is a deficient number, since it is larger than the sum of its proper divisors (34269646).

68539286 is a wasteful number, since it uses less digits than its factorization.

68539286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34269645.

The product of its digits is 622080, while the sum is 47.

The square root of 68539286 is about 8278.8456924864. The cubic root of 68539286 is about 409.2416798040.

The spelling of 68539286 in words is "sixty-eight million, five hundred thirty-nine thousand, two hundred eighty-six".