4947065839 has 8 divisors (see below), whose sum is σ = 5113774080. Its totient is φ = 4780803000.

The previous prime is 4947065813. The next prime is 4947065869. The reversal of 4947065839 is 9385607494.

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

It is a cyclic number.

It is not a de Polignac number, because 4947065839 - 2¹⁷ = 4946934767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4947065839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947065869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88687 + ... + 133264.

It is an arithmetic number, because the mean of its divisors is an integer number (639221760).

Almost surely, 2^4947065839 is an apocalyptic number.

4947065839 is a deficient number, since it is larger than the sum of its proper divisors (166708241).

4947065839 is a wasteful number, since it uses less digits than its factorization.

4947065839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222701.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The square root of 4947065839 is about 70335.3811321159. The cubic root of 4947065839 is about 1703.9201159725.

The spelling of 4947065839 in words is "four billion, nine hundred forty-seven million, sixty-five thousand, eight hundred thirty-nine".