8636242 has 4 divisors (see below), whose sum is σ = 12954366. Its totient is φ = 4318120.

The previous prime is 8636239. The next prime is 8636261. The reversal of 8636242 is 2426368.

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

It can be written as a sum of positive squares in only one way, i.e., 7241481 + 1394761 = 2691^2 + 1181^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159059 + ... + 2159062.

Almost surely, 2^8636242 is an apocalyptic number.

8636242 is a deficient number, since it is larger than the sum of its proper divisors (4318124).

8636242 is a wasteful number, since it uses less digits than its factorization.

8636242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318123.

The product of its digits is 13824, while the sum is 31.

The square root of 8636242 is about 2938.7483730323. The cubic root of 8636242 is about 205.1673588720.

The spelling of 8636242 in words is "eight million, six hundred thirty-six thousand, two hundred forty-two".