8443254634 has 4 divisors (see below), whose sum is σ = 12664881954. Its totient is φ = 4221627316.

The previous prime is 8443254607. The next prime is 8443254647. The reversal of 8443254634 is 4364523448.

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., 4517856225 + 3925398409 = 67215^2 + 62653^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110813657 + ... + 2110813660.

Almost surely, 2^8443254634 is an apocalyptic number.

8443254634 is a deficient number, since it is larger than the sum of its proper divisors (4221627320).

8443254634 is a wasteful number, since it uses less digits than its factorization.

8443254634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221627319.

The product of its digits is 1105920, while the sum is 43.

The square root of 8443254634 is about 91887.1842750663. The cubic root of 8443254634 is about 2036.2759362991.

The spelling of 8443254634 in words is "eight billion, four hundred forty-three million, two hundred fifty-four thousand, six hundred thirty-four".