68884887 has 4 divisors (see below), whose sum is σ = 91846520. Its totient is φ = 45923256.

The previous prime is 68884877. The next prime is 68884891. The reversal of 68884887 is 78848886.

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

It is not a de Polignac number, because 68884887 - 2¹⁶ = 68819351 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 (68884877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11480812 + ... + 11480817.

It is an arithmetic number, because the mean of its divisors is an integer number (22961630).

Almost surely, 2^68884887 is an apocalyptic number.

68884887 is a deficient number, since it is larger than the sum of its proper divisors (22961633).

68884887 is a wasteful number, since it uses less digits than its factorization.

68884887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961632.

The product of its digits is 5505024, while the sum is 57.

The square root of 68884887 is about 8299.6919822364. The cubic root of 68884887 is about 409.9283773363.

The spelling of 68884887 in words is "sixty-eight million, eight hundred eighty-four thousand, eight hundred eighty-seven".