68187805 has 8 divisors (see below), whose sum is σ = 93514752. Its totient is φ = 46757328.

The previous prime is 68187773. The next prime is 68187841. The reversal of 68187805 is 50878186.

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

It is a cyclic number.

It is not a de Polignac number, because 68187805 - 2⁵ = 68187773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974077 + ... + 974146.

It is an arithmetic number, because the mean of its divisors is an integer number (11689344).

Almost surely, 2^68187805 is an apocalyptic number.

It is an amenable number.

68187805 is a deficient number, since it is larger than the sum of its proper divisors (25326947).

68187805 is a wasteful number, since it uses less digits than its factorization.

68187805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948235.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 68187805 is about 8257.5907503339. The cubic root of 68187805 is about 408.5409271607.

The spelling of 68187805 in words is "sixty-eight million, one hundred eighty-seven thousand, eight hundred five".