47881305 has 12 divisors (see below), whose sum is σ = 82994340. Its totient is φ = 25536672.

The previous prime is 47881303. The next prime is 47881343. The reversal of 47881305 is 50318874.

It can be written as a sum of positive squares in 2 ways, for example, as 27846729 + 20034576 = 5277^2 + 4476^2 .

It is not a de Polignac number, because 47881305 - 2¹ = 47881303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47881305.

It is not an unprimeable number, because it can be changed into a prime (47881303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531970 + ... + 532059.

It is an arithmetic number, because the mean of its divisors is an integer number (6916195).

Almost surely, 2^47881305 is an apocalyptic number.

47881305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47881305 is a deficient number, since it is larger than the sum of its proper divisors (35113035).

47881305 is a wasteful number, since it uses less digits than its factorization.

47881305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064040 (or 1064037 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 47881305 is about 6919.6318543691. The cubic root of 47881305 is about 363.1243114071.

The spelling of 47881305 in words is "forty-seven million, eight hundred eighty-one thousand, three hundred five".