8436634 has 4 divisors (see below), whose sum is σ = 12654954. Its totient is φ = 4218316.

The previous prime is 8436613. The next prime is 8436671. The reversal of 8436634 is 4366348.

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., 8139609 + 297025 = 2853^2 + 545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8436634.

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, 2109157 + ... + 2109160.

Almost surely, 2^8436634 is an apocalyptic number.

8436634 is a deficient number, since it is larger than the sum of its proper divisors (4218320).

8436634 is a wasteful number, since it uses less digits than its factorization.

8436634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4218319.

The product of its digits is 41472, while the sum is 34.

The square root of 8436634 is about 2904.5884390047. The cubic root of 8436634 is about 203.5743560118.

The spelling of 8436634 in words is "eight million, four hundred thirty-six thousand, six hundred thirty-four".