68015803 has 4 divisors (see below), whose sum is σ = 68109328. Its totient is φ = 67922280.

The previous prime is 68015797. The next prime is 68015813. The reversal of 68015803 is 30851086.

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 68015803 - 2¹⁷ = 67884731 is a prime.

It is a super-2 number, since 2×68015803² = 9252298915469618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68015813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45663 + ... + 47128.

It is an arithmetic number, because the mean of its divisors is an integer number (17027332).

Almost surely, 2^68015803 is an apocalyptic number.

68015803 is a deficient number, since it is larger than the sum of its proper divisors (93525).

68015803 is an equidigital number, since it uses as much as digits as its factorization.

68015803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93524.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 68015803 is about 8247.1693931918. The cubic root of 68015803 is about 408.1971265640.

Adding to 68015803 its reverse (30851086), we get a palindrome (98866889).

The spelling of 68015803 in words is "sixty-eight million, fifteen thousand, eight hundred three".