68387854 has 4 divisors (see below), whose sum is σ = 102581784. Its totient is φ = 34193926.

The previous prime is 68387833. The next prime is 68387857. The reversal of 68387854 is 45878386.

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

It is a junction number, because it is equal to n+sod(n) for n = 68387798 and 68387807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68387857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17096962 + ... + 17096965.

It is an arithmetic number, because the mean of its divisors is an integer number (25645446).

Almost surely, 2^68387854 is an apocalyptic number.

68387854 is a deficient number, since it is larger than the sum of its proper divisors (34193930).

68387854 is a wasteful number, since it uses less digits than its factorization.

68387854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34193929.

The product of its digits is 1290240, while the sum is 49.

The square root of 68387854 is about 8269.6949157753. The cubic root of 68387854 is about 408.9400621154.

The spelling of 68387854 in words is "sixty-eight million, three hundred eighty-seven thousand, eight hundred fifty-four".