68214686 has 4 divisors (see below), whose sum is σ = 102322032. Its totient is φ = 34107342.

The previous prime is 68214661. The next prime is 68214689. The reversal of 68214686 is 68641286.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68214689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17053670 + ... + 17053673.

It is an arithmetic number, because the mean of its divisors is an integer number (25580508).

Almost surely, 2^68214686 is an apocalyptic number.

68214686 is a deficient number, since it is larger than the sum of its proper divisors (34107346).

68214686 is a wasteful number, since it uses less digits than its factorization.

68214686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34107345.

The product of its digits is 110592, while the sum is 41.

The square root of 68214686 is about 8259.2182438776. The cubic root of 68214686 is about 408.5946051161.

The spelling of 68214686 in words is "sixty-eight million, two hundred fourteen thousand, six hundred eighty-six".