68761986 has 8 divisors (see below), whose sum is σ = 137523984. Its totient is φ = 22920660.

The previous prime is 68761967. The next prime is 68762003. The reversal of 68761986 is 68916786.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

68761986 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5730160 + ... + 5730171.

It is an arithmetic number, because the mean of its divisors is an integer number (17190498).

Almost surely, 2^68761986 is an apocalyptic number.

68761986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68761986 is a wasteful number, since it uses less digits than its factorization.

68761986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460336.

The product of its digits is 870912, while the sum is 51.

The square root of 68761986 is about 8292.2847273836. The cubic root of 68761986 is about 409.6844409103.

The spelling of 68761986 in words is "sixty-eight million, seven hundred sixty-one thousand, nine hundred eighty-six".