68727869 has 4 divisors (see below), whose sum is σ = 78546144. Its totient is φ = 58909596.

The previous prime is 68727853. The next prime is 68727871. The reversal of 68727869 is 96872786.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68727869 - 2⁴ = 68727853 is a prime.

It is a super-2 number, since 2×68727869² = 9447039954562322, which contains 22 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 68727869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68727469) 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, 4909127 + ... + 4909140.

It is an arithmetic number, because the mean of its divisors is an integer number (19636536).

Almost surely, 2^68727869 is an apocalyptic number.

It is an amenable number.

68727869 is a deficient number, since it is larger than the sum of its proper divisors (9818275).

68727869 is an equidigital number, since it uses as much as digits as its factorization.

68727869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9818274.

The product of its digits is 2032128, while the sum is 53.

The square root of 68727869 is about 8290.2273189581. The cubic root of 68727869 is about 409.6166732518.

It can be divided in two parts, 68727 and 869, that added together give a palindrome (69596).

The spelling of 68727869 in words is "sixty-eight million, seven hundred twenty-seven thousand, eight hundred sixty-nine".