47824947 has 6 divisors (see below), whose sum is σ = 69080492. Its totient is φ = 31883292.

The previous prime is 47824943. The next prime is 47824967. The reversal of 47824947 is 74942874.

It is not a de Polignac number, because 47824947 - 2² = 47824943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47824943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2656933 + ... + 2656950.

Almost surely, 2^47824947 is an apocalyptic number.

47824947 is a deficient number, since it is larger than the sum of its proper divisors (21255545).

47824947 is a wasteful number, since it uses less digits than its factorization.

47824947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5313889 (or 5313886 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 47824947 is about 6915.5583288698. The cubic root of 47824947 is about 362.9817853939.

It can be divided in two parts, 478 and 24947, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 47824947 in words is "forty-seven million, eight hundred twenty-four thousand, nine hundred forty-seven".