47916855 has 72 divisors (see below), whose sum is σ = 99874944. Its totient is φ = 21168000.

The previous prime is 47916853. The next prime is 47916877. The reversal of 47916855 is 55861974.

It is not a de Polignac number, because 47916855 - 2¹ = 47916853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 47916855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47916853) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 68005 + ... + 68705.

It is an arithmetic number, because the mean of its divisors is an integer number (1387152).

Almost surely, 2^47916855 is an apocalyptic number.

47916855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47916855 is an abundant number, since it is smaller than the sum of its proper divisors (51958089).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47916855 is a wasteful number, since it uses less digits than its factorization.

47916855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 747 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 47916855 is about 6922.2001560198. The cubic root of 47916855 is about 363.2141577174.

The spelling of 47916855 in words is "forty-seven million, nine hundred sixteen thousand, eight hundred fifty-five".