4939191393 has 8 divisors (see below), whose sum is σ = 6587425728. Its totient is φ = 3291875664.

The previous prime is 4939191391. The next prime is 4939191401. The reversal of 4939191393 is 3931919394.

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

It is not a de Polignac number, because 4939191393 - 2¹ = 4939191391 is a prime.

It is a super-2 number, since 2×4939191393² = 48791223233370560898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4939191391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217005 + ... + 238682.

It is an arithmetic number, because the mean of its divisors is an integer number (823428216).

Almost surely, 2^4939191393 is an apocalyptic number.

It is an amenable number.

4939191393 is a deficient number, since it is larger than the sum of its proper divisors (1648234335).

4939191393 is a wasteful number, since it uses less digits than its factorization.

4939191393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459303.

The product of its digits is 708588, while the sum is 51.

The square root of 4939191393 is about 70279.3809947128. The cubic root of 4939191393 is about 1703.0155695402.

The spelling of 4939191393 in words is "four billion, nine hundred thirty-nine million, one hundred ninety-one thousand, three hundred ninety-three".