5139847 has 4 divisors (see below), whose sum is σ = 5144440. Its totient is φ = 5135256.

The previous prime is 5139821. The next prime is 5139859. The reversal of 5139847 is 7489315.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7489315 = 5 ⋅1497863.

It is a cyclic number.

It is not a de Polignac number, because 5139847 - 2¹⁵ = 5107079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5139877) 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 3 ways as a sum of consecutive naturals, for example, 604 + ... + 3262.

It is an arithmetic number, because the mean of its divisors is an integer number (1286110).

Almost surely, 2^5139847 is an apocalyptic number.

5139847 is a deficient number, since it is larger than the sum of its proper divisors (4593).

5139847 is a wasteful number, since it uses less digits than its factorization.

5139847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592.

The product of its digits is 30240, while the sum is 37.

The square root of 5139847 is about 2267.1230667963. The cubic root of 5139847 is about 172.5771915256.

The spelling of 5139847 in words is "five million, one hundred thirty-nine thousand, eight hundred forty-seven".