47758847 has 4 divisors (see below), whose sum is σ = 47892240. Its totient is φ = 47625456.

The previous prime is 47758829. The next prime is 47758849. The reversal of 47758847 is 74885774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74885774 = 2 ⋅37442887.

It is a cyclic number.

It is not a de Polignac number, because 47758847 - 2⁸ = 47758591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47758795 and 47758804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47758849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66158 + ... + 66875.

It is an arithmetic number, because the mean of its divisors is an integer number (11973060).

Almost surely, 2^47758847 is an apocalyptic number.

47758847 is a deficient number, since it is larger than the sum of its proper divisors (133393).

47758847 is a wasteful number, since it uses less digits than its factorization.

47758847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133392.

The product of its digits is 1756160, while the sum is 50.

The square root of 47758847 is about 6910.7775973475. Note that the first 3 decimals coincide. The cubic root of 47758847 is about 362.8144796966.

The spelling of 47758847 in words is "forty-seven million, seven hundred fifty-eight thousand, eight hundred forty-seven".