68334986 has 4 divisors (see below), whose sum is σ = 102502482. Its totient is φ = 34167492.

The previous prime is 68334977. The next prime is 68334997. The reversal of 68334986 is 68943386.

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

It can be written as a sum of positive squares in only one way, i.e., 65205625 + 3129361 = 8075^2 + 1769^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68334986.

It is an unprimeable number.

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, 17083745 + ... + 17083748.

Almost surely, 2^68334986 is an apocalyptic number.

68334986 is a deficient number, since it is larger than the sum of its proper divisors (34167496).

68334986 is a wasteful number, since it uses less digits than its factorization.

68334986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34167495.

The product of its digits is 746496, while the sum is 47.

The square root of 68334986 is about 8266.4978074152. The cubic root of 68334986 is about 408.8346563769.

Subtracting 68334986 from its reverse (68943386), we obtain a square (608400 = 780²).

The spelling of 68334986 in words is "sixty-eight million, three hundred thirty-four thousand, nine hundred eighty-six".