47873913 has 4 divisors (see below), whose sum is σ = 63831888. Its totient is φ = 31915940.

The previous prime is 47873909. The next prime is 47873923. The reversal of 47873913 is 31937874.

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 not a de Polignac number, because 47873913 - 2² = 47873909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47873923) 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, 7978983 + ... + 7978988.

It is an arithmetic number, because the mean of its divisors is an integer number (15957972).

Almost surely, 2^47873913 is an apocalyptic number.

It is an amenable number.

47873913 is a deficient number, since it is larger than the sum of its proper divisors (15957975).

47873913 is a wasteful number, since it uses less digits than its factorization.

47873913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15957974.

The product of its digits is 127008, while the sum is 42.

The square root of 47873913 is about 6919.0977012902. The cubic root of 47873913 is about 363.1056238556.

The spelling of 47873913 in words is "forty-seven million, eight hundred seventy-three thousand, nine hundred thirteen".