8391394734 has 16 divisors (see below), whose sum is σ = 16822658640. Its totient is φ = 2790486720.

The previous prime is 8391394729. The next prime is 8391394741. The reversal of 8391394734 is 4374931938.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1658479 + ... + 1663530.

It is an arithmetic number, because the mean of its divisors is an integer number (1051416165).

Almost surely, 2^8391394734 is an apocalyptic number.

8391394734 is an abundant number, since it is smaller than the sum of its proper divisors (8431263906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8391394734 is a wasteful number, since it uses less digits than its factorization.

8391394734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322435.

The product of its digits is 1959552, while the sum is 51.

The square root of 8391394734 is about 91604.5562949791. The cubic root of 8391394734 is about 2032.0983208194.

The spelling of 8391394734 in words is "eight billion, three hundred ninety-one million, three hundred ninety-four thousand, seven hundred thirty-four".