8247542 has 16 divisors (see below), whose sum is σ = 13044240. Its totient is φ = 3904992.

The previous prime is 8247517. The next prime is 8247553. The reversal of 8247542 is 2457428.

It is a d-powerful number, because it can be written as 8³ + 2⁵ + 4² + 7⁴ + 5⁹ + 4¹¹ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 8247499 and 8247508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733 + ... + 4415.

It is an arithmetic number, because the mean of its divisors is an integer number (815265).

Almost surely, 2^8247542 is an apocalyptic number.

8247542 is a deficient number, since it is larger than the sum of its proper divisors (4796698).

8247542 is a wasteful number, since it uses less digits than its factorization.

8247542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767.

The product of its digits is 17920, while the sum is 32.

The square root of 8247542 is about 2871.8534085151. The cubic root of 8247542 is about 202.0419316278.

The spelling of 8247542 in words is "eight million, two hundred forty-seven thousand, five hundred forty-two".