47421833 has 4 divisors (see below), whose sum is σ = 47441940. Its totient is φ = 47401728.

The previous prime is 47421799. The next prime is 47421839. The reversal of 47421833 is 33812474.

47421833 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 25030009 + 22391824 = 5003^2 + 4732^2 .

It is a cyclic number.

It is not a de Polignac number, because 47421833 - 2⁶ = 47421769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47421833.

It is not an unprimeable number, because it can be changed into a prime (47421839) 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, 5960 + ... + 11417.

It is an arithmetic number, because the mean of its divisors is an integer number (11860485).

Almost surely, 2^47421833 is an apocalyptic number.

It is an amenable number.

47421833 is a deficient number, since it is larger than the sum of its proper divisors (20107).

47421833 is a wasteful number, since it uses less digits than its factorization.

47421833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20106.

The product of its digits is 16128, while the sum is 32.

The square root of 47421833 is about 6886.3512109099. The cubic root of 47421833 is about 361.9590549215.

The spelling of 47421833 in words is "forty-seven million, four hundred twenty-one thousand, eight hundred thirty-three".