47036993 has 4 divisors (see below), whose sum is σ = 47053188. Its totient is φ = 47020800.

The previous prime is 47036987. The next prime is 47037017. The reversal of 47036993 is 39963074.

47036993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12837889 + 34199104 = 3583^2 + 5848^2 .

It is a cyclic number.

It is not a de Polignac number, because 47036993 - 2⁶ = 47036929 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 47036993.

It is not an unprimeable number, because it can be changed into a prime (47036903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (11763297).

Almost surely, 2^47036993 is an apocalyptic number.

It is an amenable number.

47036993 is a deficient number, since it is larger than the sum of its proper divisors (16195).

47036993 is a wasteful number, since it uses less digits than its factorization.

47036993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 47036993 is about 6858.3520615378. The cubic root of 47036993 is about 360.9772649592.

The spelling of 47036993 in words is "forty-seven million, thirty-six thousand, nine hundred ninety-three".