68424439 has 8 divisors (see below), whose sum is σ = 72528480. Its totient is φ = 64329216.

The previous prime is 68424403. The next prime is 68424443. The reversal of 68424439 is 93442486.

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

It is a cyclic number.

It is not a de Polignac number, because 68424439 - 2²³ = 60035831 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 (68424469) 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, 20607 + ... + 23695.

It is an arithmetic number, because the mean of its divisors is an integer number (9066060).

Almost surely, 2^68424439 is an apocalyptic number.

68424439 is a deficient number, since it is larger than the sum of its proper divisors (4104041).

68424439 is a wasteful number, since it uses less digits than its factorization.

68424439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409.

The product of its digits is 165888, while the sum is 40.

The square root of 68424439 is about 8271.9066121421. The cubic root of 68424439 is about 409.0129717731.

The spelling of 68424439 in words is "sixty-eight million, four hundred twenty-four thousand, four hundred thirty-nine".