68505403 has 8 divisors (see below), whose sum is σ = 70054400. Its totient is φ = 66973608.

The previous prime is 68505391. The next prime is 68505419. The reversal of 68505403 is 30450586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68505403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68505433) 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, 3928 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (8756800).

Almost surely, 2^68505403 is an apocalyptic number.

68505403 is a deficient number, since it is larger than the sum of its proper divisors (1548997).

68505403 is a wasteful number, since it uses less digits than its factorization.

68505403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 68505403 is about 8276.7990793543. The cubic root of 68505403 is about 409.1742312780.

Adding to 68505403 its reverse (30450586), we get a palindrome (98955989).

The spelling of 68505403 in words is "sixty-eight million, five hundred five thousand, four hundred three".