47915839 has 8 divisors (see below), whose sum is σ = 49271040. Its totient is φ = 46569600.

The previous prime is 47915837. The next prime is 47915893. The reversal of 47915839 is 93851974.

It is a happy number.

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 47915839 - 2¹ = 47915837 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 (47915837) 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, 9442 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (6158880).

Almost surely, 2^47915839 is an apocalyptic number.

47915839 is a deficient number, since it is larger than the sum of its proper divisors (1355201).

47915839 is a wasteful number, since it uses less digits than its factorization.

47915839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481.

The product of its digits is 272160, while the sum is 46.

The square root of 47915839 is about 6922.1267685589. The cubic root of 47915839 is about 363.2115905749.

The spelling of 47915839 in words is "forty-seven million, nine hundred fifteen thousand, eight hundred thirty-nine".