68773387 has 4 divisors (see below), whose sum is σ = 68796360. Its totient is φ = 68750416.

The previous prime is 68773357. The next prime is 68773391. The reversal of 68773387 is 78337786.

It is a happy number.

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 68773387 - 2⁷ = 68773259 is a prime.

It is a super-4 number, since 4×68773387⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68773387.

It is not an unprimeable number, because it can be changed into a prime (68773337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6178 + ... + 13255.

It is an arithmetic number, because the mean of its divisors is an integer number (17199090).

Almost surely, 2^68773387 is an apocalyptic number.

68773387 is a deficient number, since it is larger than the sum of its proper divisors (22973).

68773387 is a wasteful number, since it uses less digits than its factorization.

68773387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22972.

The product of its digits is 1185408, while the sum is 49.

The square root of 68773387 is about 8292.9721451359. The cubic root of 68773387 is about 409.7070820742.

The spelling of 68773387 in words is "sixty-eight million, seven hundred seventy-three thousand, three hundred eighty-seven".