68087766 has 32 divisors (see below), whose sum is σ = 141523200. Its totient is φ = 21812000.

The previous prime is 68087713. The next prime is 68087779. The reversal of 68087766 is 66778086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42895 + ... + 44453.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 2^68087766 is an apocalyptic number.

68087766 is an abundant number, since it is smaller than the sum of its proper divisors (73435434).

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

68087766 is a wasteful number, since it uses less digits than its factorization.

68087766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 68087766 is about 8251.5311306448. The cubic root of 68087766 is about 408.3410379036.

The spelling of 68087766 in words is "sixty-eight million, eighty-seven thousand, seven hundred sixty-six".