47918805 has 32 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 22946880.

The previous prime is 47918789. The next prime is 47918807. The reversal of 47918805 is 50881974.

It is not a de Polignac number, because 47918805 - 2⁴ = 47918789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47918807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11946 + ... + 15444.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^47918805 is an apocalyptic number.

It is an amenable number.

47918805 is a deficient number, since it is larger than the sum of its proper divisors (36753195).

47918805 is a wasteful number, since it uses less digits than its factorization.

47918805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 47918805 is about 6922.3410057581. The cubic root of 47918805 is about 363.2190847102.

The spelling of 47918805 in words is "forty-seven million, nine hundred eighteen thousand, eight hundred five".