67872479 has 8 divisors (see below), whose sum is σ = 69288720. Its totient is φ = 66465216.

The previous prime is 67872451. The next prime is 67872491. The reversal of 67872479 is 97427876.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67872479 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 (67872419) 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, 14267 + ... + 18419.

It is an arithmetic number, because the mean of its divisors is an integer number (8661090).

Almost surely, 2^67872479 is an apocalyptic number.

67872479 is a deficient number, since it is larger than the sum of its proper divisors (1416241).

67872479 is a wasteful number, since it uses less digits than its factorization.

67872479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its digits is 1185408, while the sum is 50.

The square root of 67872479 is about 8238.4755264551. The cubic root of 67872479 is about 407.9102050723.

The spelling of 67872479 in words is "sixty-seven million, eight hundred seventy-two thousand, four hundred seventy-nine".