47473873 has 4 divisors (see below), whose sum is σ = 47497840. Its totient is φ = 47449908.

The previous prime is 47473861. The next prime is 47473883. The reversal of 47473873 is 37837474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47473873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47473813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715 + ... + 13072.

It is an arithmetic number, because the mean of its divisors is an integer number (11874460).

Almost surely, 2^47473873 is an apocalyptic number.

47473873 is the 4358-th heptagonal number.

It is an amenable number.

47473873 is a deficient number, since it is larger than the sum of its proper divisors (23967).

47473873 is a wasteful number, since it uses less digits than its factorization.

47473873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23966.

The product of its digits is 395136, while the sum is 43.

The square root of 47473873 is about 6890.1286635302. The cubic root of 47473873 is about 362.0914093103.

It can be divided in two parts, 474 and 73873, that added together give a palindrome (74347).

The spelling of 47473873 in words is "forty-seven million, four hundred seventy-three thousand, eight hundred seventy-three".