47918505 has 8 divisors (see below), whose sum is σ = 76669632. Its totient is φ = 25556528.

The previous prime is 47918503. The next prime is 47918509. The reversal of 47918505 is 50581974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47918505 - 2¹ = 47918503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47918501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597269 + ... + 1597298.

It is an arithmetic number, because the mean of its divisors is an integer number (9583704).

Almost surely, 2^47918505 is an apocalyptic number.

It is an amenable number.

47918505 is a deficient number, since it is larger than the sum of its proper divisors (28751127).

47918505 is a wasteful number, since it uses less digits than its factorization.

47918505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194575.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 47918505 is about 6922.3193367541. The cubic root of 47918505 is about 363.2183267200.

The spelling of 47918505 in words is "forty-seven million, nine hundred eighteen thousand, five hundred five".