47856313 has 4 divisors (see below), whose sum is σ = 47870208. Its totient is φ = 47842420.

The previous prime is 47856301. The next prime is 47856317. The reversal of 47856313 is 31365874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47856313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47856317) 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, 2520 + ... + 10102.

It is an arithmetic number, because the mean of its divisors is an integer number (11967552).

Almost surely, 2^47856313 is an apocalyptic number.

It is an amenable number.

47856313 is a deficient number, since it is larger than the sum of its proper divisors (13895).

47856313 is an equidigital number, since it uses as much as digits as its factorization.

47856313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13894.

The product of its digits is 60480, while the sum is 37.

The square root of 47856313 is about 6917.8257422401. The cubic root of 47856313 is about 363.0611219416.

The spelling of 47856313 in words is "forty-seven million, eight hundred fifty-six thousand, three hundred thirteen".