47928839 has 8 divisors (see below), whose sum is σ = 55195008. Its totient is φ = 40767480.

The previous prime is 47928817. The next prime is 47928841. The reversal of 47928839 is 93882974.

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 47928839 - 2¹⁶ = 47863303 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 (47928809) 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, 25217 + ... + 27050.

It is an arithmetic number, because the mean of its divisors is an integer number (6899376).

Almost surely, 2^47928839 is an apocalyptic number.

47928839 is a deficient number, since it is larger than the sum of its proper divisors (7266169).

47928839 is a wasteful number, since it uses less digits than its factorization.

47928839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52405.

The product of its digits is 870912, while the sum is 50.

The square root of 47928839 is about 6923.0657226405. The cubic root of 47928839 is about 363.2444351333.

It can be divided in two parts, 4792 and 8839, that added together give a palindrome (13631).

The spelling of 47928839 in words is "forty-seven million, nine hundred twenty-eight thousand, eight hundred thirty-nine".