47856783 has 16 divisors (see below), whose sum is σ = 68850656. Its totient is φ = 29393280.

The previous prime is 47856779. The next prime is 47856803. The reversal of 47856783 is 38765874.

It is not a de Polignac number, because 47856783 - 2² = 47856779 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47856733) 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, 28713 + ... + 30333.

It is an arithmetic number, because the mean of its divisors is an integer number (4303166).

Almost surely, 2^47856783 is an apocalyptic number.

47856783 is a deficient number, since it is larger than the sum of its proper divisors (20993873).

47856783 is a wasteful number, since it uses less digits than its factorization.

47856783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its digits is 1128960, while the sum is 48.

The square root of 47856783 is about 6917.8597123677. The cubic root of 47856783 is about 363.0623104868.

Subtracting from 47856783 its reverse (38765874), we obtain a palindrome (9090909).

The spelling of 47856783 in words is "forty-seven million, eight hundred fifty-six thousand, seven hundred eighty-three".