68291063 has 4 divisors (see below), whose sum is σ = 68311848. Its totient is φ = 68270280.

The previous prime is 68291053. The next prime is 68291077. The reversal of 68291063 is 36019286.

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

It is a cyclic number.

It is not a de Polignac number, because 68291063 - 2²² = 64096759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68291033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4256 + ... + 12437.

It is an arithmetic number, because the mean of its divisors is an integer number (17077962).

Almost surely, 2^68291063 is an apocalyptic number.

68291063 is a deficient number, since it is larger than the sum of its proper divisors (20785).

68291063 is a wasteful number, since it uses less digits than its factorization.

68291063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20784.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 68291063 is about 8263.8406930434. The cubic root of 68291063 is about 408.7470434062.

The spelling of 68291063 in words is "sixty-eight million, two hundred ninety-one thousand, sixty-three".