68809763 has 8 divisors (see below), whose sum is σ = 75840240. Its totient is φ = 61908480.

The previous prime is 68809759. The next prime is 68809777. The reversal of 68809763 is 36790886.

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 68809763 - 2² = 68809759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68809703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31178 + ... + 33311.

It is an arithmetic number, because the mean of its divisors is an integer number (9480030).

Almost surely, 2^68809763 is an apocalyptic number.

68809763 is a deficient number, since it is larger than the sum of its proper divisors (7030477).

68809763 is a wasteful number, since it uses less digits than its factorization.

68809763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64597.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 68809763 is about 8295.1650375384. The cubic root of 68809763 is about 409.7793041872.

The spelling of 68809763 in words is "sixty-eight million, eight hundred nine thousand, seven hundred sixty-three".