47564838 has 24 divisors (see below), whose sum is σ = 105572376. Its totient is φ = 15468000.

The previous prime is 47564833. The next prime is 47564857. The reversal of 47564838 is 83846574.

47564838 is a `hidden beast` number, since 4 + 7 + 564 + 83 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 47564793 and 47564802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47564833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31488 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (4398849).

Almost surely, 2^47564838 is an apocalyptic number.

47564838 is an abundant number, since it is smaller than the sum of its proper divisors (58007538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47564838 is a wasteful number, since it uses less digits than its factorization.

47564838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64500 (or 64497 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 47564838 is about 6896.7266148514. The cubic root of 47564838 is about 362.3225303318.

The spelling of 47564838 in words is "forty-seven million, five hundred sixty-four thousand, eight hundred thirty-eight".