47864791 has 16 divisors (see below), whose sum is σ = 53319168. Its totient is φ = 42681600.

The previous prime is 47864783. The next prime is 47864797. The reversal of 47864791 is 19746874.

It is not a de Polignac number, because 47864791 - 2³ = 47864783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47864797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91611 + ... + 92131.

It is an arithmetic number, because the mean of its divisors is an integer number (3332448).

Almost surely, 2^47864791 is an apocalyptic number.

47864791 is a deficient number, since it is larger than the sum of its proper divisors (5454377).

47864791 is a wasteful number, since it uses less digits than its factorization.

47864791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 338688, while the sum is 46.

The square root of 47864791 is about 6918.4384798884. The cubic root of 47864791 is about 363.0825600777.

The spelling of 47864791 in words is "forty-seven million, eight hundred sixty-four thousand, seven hundred ninety-one".