47724371 has 4 divisors (see below), whose sum is σ = 50236200. Its totient is φ = 45212544.

The previous prime is 47724353. The next prime is 47724377. The reversal of 47724371 is 17342774.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47724371 - 2¹⁸ = 47462227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47724377) 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, 1255886 + ... + 1255923.

It is an arithmetic number, because the mean of its divisors is an integer number (12559050).

Almost surely, 2^47724371 is an apocalyptic number.

47724371 is a deficient number, since it is larger than the sum of its proper divisors (2511829).

47724371 is a wasteful number, since it uses less digits than its factorization.

47724371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511828.

The product of its digits is 32928, while the sum is 35.

The square root of 47724371 is about 6908.2827822839. The cubic root of 47724371 is about 362.7271562383.

The spelling of 47724371 in words is "forty-seven million, seven hundred twenty-four thousand, three hundred seventy-one".