8641359634 has 4 divisors (see below), whose sum is σ = 12962039454. Its totient is φ = 4320679816.

The previous prime is 8641359631. The next prime is 8641359637. The reversal of 8641359634 is 4369531468.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (8641359631) and next prime (8641359637).

It can be written as a sum of positive squares in only one way, i.e., 8640632025 + 727609 = 92955^2 + 853^2 .

It is a super-2 number, since 2×8641359634² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8641359631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160339907 + ... + 2160339910.

Almost surely, 2^8641359634 is an apocalyptic number.

8641359634 is a deficient number, since it is larger than the sum of its proper divisors (4320679820).

8641359634 is a wasteful number, since it uses less digits than its factorization.

8641359634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320679819.

The product of its digits is 1866240, while the sum is 49.

The square root of 8641359634 is about 92958.9136877147. The cubic root of 8641359634 is about 2052.0787665441.

The spelling of 8641359634 in words is "eight billion, six hundred forty-one million, three hundred fifty-nine thousand, six hundred thirty-four".