8239381634 has 8 divisors (see below), whose sum is σ = 13482624528. Its totient is φ = 3745173460.

The previous prime is 8239381589. The next prime is 8239381637. The reversal of 8239381634 is 4361839328.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8239381637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187258652 + ... + 187258695.

It is an arithmetic number, because the mean of its divisors is an integer number (1685328066).

Almost surely, 2^8239381634 is an apocalyptic number.

8239381634 is a deficient number, since it is larger than the sum of its proper divisors (5243242894).

8239381634 is a wasteful number, since it uses less digits than its factorization.

8239381634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374517360.

The product of its digits is 746496, while the sum is 47.

The square root of 8239381634 is about 90771.0396216767. The cubic root of 8239381634 is about 2019.7527418494.

The spelling of 8239381634 in words is "eight billion, two hundred thirty-nine million, three hundred eighty-one thousand, six hundred thirty-four".