68424599 has 4 divisors (see below), whose sum is σ = 68561136. Its totient is φ = 68288064.

The previous prime is 68424569. The next prime is 68424611. The reversal of 68424599 is 99542486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99542486 = 2 ⋅49771243.

It is a cyclic number.

It is not a de Polignac number, because 68424599 - 2²⁴ = 51647383 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 (68424509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67514 + ... + 68519.

It is an arithmetic number, because the mean of its divisors is an integer number (17140284).

Almost surely, 2^68424599 is an apocalyptic number.

68424599 is a deficient number, since it is larger than the sum of its proper divisors (136537).

68424599 is a wasteful number, since it uses less digits than its factorization.

68424599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136536.

The product of its digits is 622080, while the sum is 47.

The square root of 68424599 is about 8271.9162834255. The cubic root of 68424599 is about 409.0132905775.

The spelling of 68424599 in words is "sixty-eight million, four hundred twenty-four thousand, five hundred ninety-nine".