47999993 has 4 divisors (see below), whose sum is σ = 50823540. Its totient is φ = 45176448.

The previous prime is 47999969. The next prime is 48000013. The reversal of 47999993 is 39999974.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37063744 + 10936249 = 6088^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 47999993 - 2¹⁰ = 47998969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47999923) 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, 1411748 + ... + 1411781.

It is an arithmetic number, because the mean of its divisors is an integer number (12705885).

Almost surely, 2^47999993 is an apocalyptic number.

It is an amenable number.

47999993 is a deficient number, since it is larger than the sum of its proper divisors (2823547).

47999993 is a wasteful number, since it uses less digits than its factorization.

47999993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823546.

The product of its digits is 4960116, while the sum is 59.

The square root of 47999993 is about 6928.2027250940. The cubic root of 47999993 is about 363.4241009000.

It can be divided in two parts, 4 and 7999993, that added together give a palindrome (7999997).

The spelling of 47999993 in words is "forty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-three".