8634842 has 4 divisors (see below), whose sum is σ = 12952266. Its totient is φ = 4317420.

The previous prime is 8634841. The next prime is 8634851. The reversal of 8634842 is 2484368.

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., 5707321 + 2927521 = 2389^2 + 1711^2 .

It is not an unprimeable number, because it can be changed into a prime (8634841) by changing a digit.

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, 2158709 + ... + 2158712.

Almost surely, 2^8634842 is an apocalyptic number.

8634842 is a deficient number, since it is larger than the sum of its proper divisors (4317424).

8634842 is a wasteful number, since it uses less digits than its factorization.

8634842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317423.

The product of its digits is 36864, while the sum is 35.

The square root of 8634842 is about 2938.5101667342. The cubic root of 8634842 is about 205.1562718805.

The spelling of 8634842 in words is "eight million, six hundred thirty-four thousand, eight hundred forty-two".