68387903 has 8 divisors (see below), whose sum is σ = 69705360. Its totient is φ = 67075840.

The previous prime is 68387899. The next prime is 68387909. The reversal of 68387903 is 30978386.

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

It is a cyclic number.

It is not a de Polignac number, because 68387903 - 2² = 68387899 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 (68387909) 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, 31823 + ... + 33903.

It is an arithmetic number, because the mean of its divisors is an integer number (8713170).

Almost surely, 2^68387903 is an apocalyptic number.

68387903 is a deficient number, since it is larger than the sum of its proper divisors (1317457).

68387903 is a wasteful number, since it uses less digits than its factorization.

68387903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 68387903 is about 8269.6978783992. The cubic root of 68387903 is about 408.9401597841.

It can be divided in two parts, 6838 and 7903, that added together give a palindrome (14741).

The spelling of 68387903 in words is "sixty-eight million, three hundred eighty-seven thousand, nine hundred three".