68427013 has 4 divisors (see below), whose sum is σ = 70634368. Its totient is φ = 66219660.

The previous prime is 68427011. The next prime is 68427017. The reversal of 68427013 is 31072486.

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 68427013 - 2¹ = 68427011 is a prime.

It is a super-2 number, since 2×68427013² = 9364512216204338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2207323 = 68427013 / (6 + 8 + 4 + 2 + 7 + 0 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68427011) 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, 1103631 + ... + 1103692.

It is an arithmetic number, because the mean of its divisors is an integer number (17658592).

Almost surely, 2^68427013 is an apocalyptic number.

It is an amenable number.

68427013 is a deficient number, since it is larger than the sum of its proper divisors (2207355).

68427013 is a wasteful number, since it uses less digits than its factorization.

68427013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207354.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 68427013 is about 8272.0621975418. The cubic root of 68427013 is about 409.0181004776.

Adding to 68427013 its reverse (31072486), we get a palindrome (99499499).

The spelling of 68427013 in words is "sixty-eight million, four hundred twenty-seven thousand, thirteen".