47768857 has 4 divisors (see below), whose sum is σ = 47833216. Its totient is φ = 47704500.

The previous prime is 47768843. The next prime is 47768863. The reversal of 47768857 is 75886774.

47768857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 75886774 = 2 ⋅37943387.

It is a cyclic number.

It is not a de Polignac number, because 47768857 - 2¹¹ = 47766809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47768837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31053 + ... + 32554.

It is an arithmetic number, because the mean of its divisors is an integer number (11958304).

Almost surely, 2^47768857 is an apocalyptic number.

It is an amenable number.

47768857 is a deficient number, since it is larger than the sum of its proper divisors (64359).

47768857 is an equidigital number, since it uses as much as digits as its factorization.

47768857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64358.

The product of its digits is 2634240, while the sum is 52.

The square root of 47768857 is about 6911.5017904939. The cubic root of 47768857 is about 362.8398259201.

The spelling of 47768857 in words is "forty-seven million, seven hundred sixty-eight thousand, eight hundred fifty-seven".