68263887 has 8 divisors (see below), whose sum is σ = 91236400. Its totient is φ = 45400320.

The previous prime is 68263859. The next prime is 68263889. The reversal of 68263887 is 78836286.

It is a happy number.

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

It is not a de Polignac number, because 68263887 - 2⁷ = 68263759 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 (68263889) 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, 25762 + ... + 28287.

It is an arithmetic number, because the mean of its divisors is an integer number (11404550).

Almost surely, 2^68263887 is an apocalyptic number.

68263887 is a deficient number, since it is larger than the sum of its proper divisors (22972513).

68263887 is a wasteful number, since it uses less digits than its factorization.

68263887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54473.

The product of its digits is 774144, while the sum is 48.

The square root of 68263887 is about 8262.1962576545. The cubic root of 68263887 is about 408.6928167721.

The spelling of 68263887 in words is "sixty-eight million, two hundred sixty-three thousand, eight hundred eighty-seven".