47944787 has 4 divisors (see below), whose sum is σ = 52303416. Its totient is φ = 43586160.

The previous prime is 47944769. The next prime is 47944789. The reversal of 47944787 is 78744974.

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 47944787 - 2⁶ = 47944723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47944789) 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, 2179298 + ... + 2179319.

It is an arithmetic number, because the mean of its divisors is an integer number (13075854).

Almost surely, 2^47944787 is an apocalyptic number.

47944787 is a deficient number, since it is larger than the sum of its proper divisors (4358629).

47944787 is a wasteful number, since it uses less digits than its factorization.

47944787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358628.

The product of its digits is 1580544, while the sum is 50.

The square root of 47944787 is about 6924.2174287063. The cubic root of 47944787 is about 363.2847197160.

The spelling of 47944787 in words is "forty-seven million, nine hundred forty-four thousand, seven hundred eighty-seven".