8142479 has 8 divisors (see below), whose sum is σ = 8399520. Its totient is φ = 7887456.

The previous prime is 8142467. The next prime is 8142487. The reversal of 8142479 is 9742418.

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 8142479 - 2²⁰ = 7093903 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 (8145479) 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, 12977 + ... + 13589.

It is an arithmetic number, because the mean of its divisors is an integer number (1049940).

Almost surely, 2^8142479 is an apocalyptic number.

8142479 is a deficient number, since it is larger than the sum of its proper divisors (257041).

8142479 is a wasteful number, since it uses less digits than its factorization.

8142479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

The product of its digits is 16128, while the sum is 35.

The square root of 8142479 is about 2853.5029349906. The cubic root of 8142479 is about 201.1803452218.

The spelling of 8142479 in words is "eight million, one hundred forty-two thousand, four hundred seventy-nine".