8426539 has 4 divisors (see below), whose sum is σ = 9192600. Its totient is φ = 7660480.

The previous prime is 8426527. The next prime is 8426549. The reversal of 8426539 is 9356248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8426539 - 2⁵ = 8426507 is a prime.

It is a d-powerful number, because it can be written as 8⁵ + 4 + 2²³ + 6⁴ + 5⁵ + 3⁶ + 9 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8426498 and 8426507.

It is not an unprimeable number, because it can be changed into a prime (8426549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383014 + ... + 383035.

It is an arithmetic number, because the mean of its divisors is an integer number (2298150).

Almost surely, 2^8426539 is an apocalyptic number.

8426539 is a deficient number, since it is larger than the sum of its proper divisors (766061).

8426539 is a wasteful number, since it uses less digits than its factorization.

8426539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766060.

The product of its digits is 51840, while the sum is 37.

The square root of 8426539 is about 2902.8501511446. The cubic root of 8426539 is about 203.4931268015.

It can be divided in two parts, 842 and 6539, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 8426539 in words is "eight million, four hundred twenty-six thousand, five hundred thirty-nine".