50639847 has 8 divisors (see below), whose sum is σ = 68175744. Its totient is φ = 33431928.

The previous prime is 50639839. The next prime is 50639863. The reversal of 50639847 is 74893605.

It is a happy number.

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

It is not a de Polignac number, because 50639847 - 2³ = 50639839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50639799 and 50639808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50639837) 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, 81633 + ... + 82250.

It is an arithmetic number, because the mean of its divisors is an integer number (8521968).

Almost surely, 2^50639847 is an apocalyptic number.

50639847 is a deficient number, since it is larger than the sum of its proper divisors (17535897).

50639847 is a wasteful number, since it uses less digits than its factorization.

50639847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163989.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 50639847 is about 7116.1679997032. The cubic root of 50639847 is about 369.9679714180.

The spelling of 50639847 in words is "fifty million, six hundred thirty-nine thousand, eight hundred forty-seven".