47799739 has 4 divisors (see below), whose sum is σ = 51476656. Its totient is φ = 44122824.

The previous prime is 47799721. The next prime is 47799751. The reversal of 47799739 is 93799774.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47799739 - 2¹³ = 47791547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47799739.

It is not an unprimeable number, because it can be changed into a prime (47799769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838439 + ... + 1838464.

It is an arithmetic number, because the mean of its divisors is an integer number (12869164).

Almost surely, 2^47799739 is an apocalyptic number.

47799739 is a deficient number, since it is larger than the sum of its proper divisors (3676917).

47799739 is a wasteful number, since it uses less digits than its factorization.

47799739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676916.

The product of its digits is 3000564, while the sum is 55.

The square root of 47799739 is about 6913.7355315343. The cubic root of 47799739 is about 362.9179996257.

The spelling of 47799739 in words is "forty-seven million, seven hundred ninety-nine thousand, seven hundred thirty-nine".