8526643 has 4 divisors (see below), whose sum is σ = 8801728. Its totient is φ = 8251560.

The previous prime is 8526631. The next prime is 8526671. The reversal of 8526643 is 3466258.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3466258 = 2 ⋅1733129.

It is a cyclic number.

It is not a de Polignac number, because 8526643 - 2¹³ = 8518451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8526599 and 8526608.

It is not an unprimeable number, because it can be changed into a prime (8526143) 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, 137496 + ... + 137557.

It is an arithmetic number, because the mean of its divisors is an integer number (2200432).

Almost surely, 2^8526643 is an apocalyptic number.

8526643 is a deficient number, since it is larger than the sum of its proper divisors (275085).

8526643 is a wasteful number, since it uses less digits than its factorization.

8526643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275084.

The product of its digits is 34560, while the sum is 34.

The square root of 8526643 is about 2920.0416092926. The cubic root of 8526643 is about 204.2957631593.

The spelling of 8526643 in words is "eight million, five hundred twenty-six thousand, six hundred forty-three".