47945855 has 8 divisors (see below), whose sum is σ = 57687552. Its totient is φ = 38255008.

The previous prime is 47945827. The next prime is 47945857. The reversal of 47945855 is 55854974.

It is a happy number.

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 47945855 - 2⁶ = 47945791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47945857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10604 + ... + 14433.

It is an arithmetic number, because the mean of its divisors is an integer number (7210944).

Almost surely, 2^47945855 is an apocalyptic number.

47945855 is a deficient number, since it is larger than the sum of its proper divisors (9741697).

47945855 is a wasteful number, since it uses less digits than its factorization.

47945855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25425.

The product of its digits is 1008000, while the sum is 47.

The square root of 47945855 is about 6924.2945489053. The cubic root of 47945855 is about 363.2874171605.

The spelling of 47945855 in words is "forty-seven million, nine hundred forty-five thousand, eight hundred fifty-five".