47857948 has 6 divisors (see below), whose sum is σ = 83751416. Its totient is φ = 23928972.

The previous prime is 47857937. The next prime is 47857951. The reversal of 47857948 is 84975874.

It is a junction number, because it is equal to n+sod(n) for n = 47857895 and 47857904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5982240 + ... + 5982247.

Almost surely, 2^47857948 is an apocalyptic number.

It is an amenable number.

47857948 is a deficient number, since it is larger than the sum of its proper divisors (35893468).

47857948 is a wasteful number, since it uses less digits than its factorization.

47857948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11964491 (or 11964489 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 47857948 is about 6917.9439141988. The cubic root of 47857948 is about 363.0652565280.

The spelling of 47857948 in words is "forty-seven million, eight hundred fifty-seven thousand, nine hundred forty-eight".