47093805 has 90 divisors (see below), whose sum is σ = 95882094. Its totient is φ = 22096800.

The previous prime is 47093779. The next prime is 47093819. The reversal of 47093805 is 50839074.

47093805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37675044 + 9418761 = 6138^2 + 3069^2 .

It is not a de Polignac number, because 47093805 - 2¹¹ = 47091757 is a prime.

It is a super-3 number, since 3×47093805³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47093805.

It is a congruent number.

It is an unprimeable number.

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 89 ways as a sum of consecutive naturals, for example, 1519140 + ... + 1519170.

Almost surely, 2^47093805 is an apocalyptic number.

47093805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47093805 is an abundant number, since it is smaller than the sum of its proper divisors (48788289).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47093805 is a wasteful number, since it uses less digits than its factorization.

47093805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 47093805 is about 6862.4926229469. The cubic root of 47093805 is about 361.1225377756.

The spelling of 47093805 in words is "forty-seven million, ninety-three thousand, eight hundred five".