47785838 has 4 divisors (see below), whose sum is σ = 71678760. Its totient is φ = 23892918.

The previous prime is 47785799. The next prime is 47785841. The reversal of 47785838 is 83858774.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11946458 + ... + 11946461.

It is an arithmetic number, because the mean of its divisors is an integer number (17919690).

Almost surely, 2^47785838 is an apocalyptic number.

47785838 is a deficient number, since it is larger than the sum of its proper divisors (23892922).

47785838 is a wasteful number, since it uses less digits than its factorization.

47785838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23892921.

The product of its digits is 1505280, while the sum is 50.

The square root of 47785838 is about 6912.7301408344. The cubic root of 47785838 is about 362.8828152478.

The spelling of 47785838 in words is "forty-seven million, seven hundred eighty-five thousand, eight hundred thirty-eight".