47831877 has 16 divisors (see below), whose sum is σ = 71740160. Its totient is φ = 31886460.

The previous prime is 47831809. The next prime is 47831879. The reversal of 47831877 is 77813874.

It is a happy number.

It is not a de Polignac number, because 47831877 - 2¹⁵ = 47799109 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 (47831879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8749 + ... + 13122.

It is an arithmetic number, because the mean of its divisors is an integer number (4483760).

Almost surely, 2^47831877 is an apocalyptic number.

It is an amenable number.

47831877 is a deficient number, since it is larger than the sum of its proper divisors (23908283).

47831877 is an frugal number, since it uses more digits than its factorization.

47831877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21892 (or 21874 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 47831877 is about 6916.0593548639. The cubic root of 47831877 is about 362.9993169853. Note that the first 3 decimals are identical.

The spelling of 47831877 in words is "forty-seven million, eight hundred thirty-one thousand, eight hundred seventy-seven".