8339947434 has 80 divisors (see below), whose sum is σ = 23000237568. Its totient is φ = 2199542688.

The previous prime is 8339947433. The next prime is 8339947439. The reversal of 8339947434 is 4347499338.

8339947434 is a `hidden beast` number, since 83 + 3 + 99 + 47 + 434 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8339947433) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 268122 + ... + 297605.

Almost surely, 2^8339947434 is an apocalyptic number.

8339947434 is an abundant number, since it is smaller than the sum of its proper divisors (14660290134).

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

8339947434 is a wasteful number, since it uses less digits than its factorization.

8339947434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565761 (or 565752 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The square root of 8339947434 is about 91323.3126534512. The cubic root of 8339947434 is about 2027.9369006312.

The spelling of 8339947434 in words is "eight billion, three hundred thirty-nine million, nine hundred forty-seven thousand, four hundred thirty-four".