8636542 has 4 divisors (see below), whose sum is σ = 12954816. Its totient is φ = 4318270.

The previous prime is 8636539. The next prime is 8636543. The reversal of 8636542 is 2456368.

It is a happy number.

8636542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 8636498 and 8636507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8636543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159134 + ... + 2159137.

It is an arithmetic number, because the mean of its divisors is an integer number (3238704).

Almost surely, 2^8636542 is an apocalyptic number.

8636542 is a deficient number, since it is larger than the sum of its proper divisors (4318274).

8636542 is a wasteful number, since it uses less digits than its factorization.

8636542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318273.

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

The square root of 8636542 is about 2938.7994147270. The cubic root of 8636542 is about 205.1697345000.

The spelling of 8636542 in words is "eight million, six hundred thirty-six thousand, five hundred forty-two".