47919105 has 36 divisors (see below), whose sum is σ = 89954748. Its totient is φ = 23587200.

The previous prime is 47919103. The next prime is 47919127. The reversal of 47919105 is 50191974.

It can be written as a sum of positive squares in 6 ways, for example, as 7354944 + 40564161 = 2712^2 + 6369^2 .

It is not a de Polignac number, because 47919105 - 2¹ = 47919103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47919105.

It is not an unprimeable number, because it can be changed into a prime (47919103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4455 + ... + 10755.

It is an arithmetic number, because the mean of its divisors is an integer number (2498743).

Almost surely, 2^47919105 is an apocalyptic number.

47919105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47919105 is a deficient number, since it is larger than the sum of its proper divisors (42035643).

47919105 is a wasteful number, since it uses less digits than its factorization.

47919105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338 (or 6322 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 47919105 is about 6922.3626746942. The cubic root of 47919105 is about 363.2198426972.

The spelling of 47919105 in words is "forty-seven million, nine hundred nineteen thousand, one hundred five".