47785222 has 4 divisors (see below), whose sum is σ = 71677836. Its totient is φ = 23892610.

The previous prime is 47785187. The next prime is 47785253. The reversal of 47785222 is 22258774.

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 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, 11946304 + ... + 11946307.

It is an arithmetic number, because the mean of its divisors is an integer number (17919459).

Almost surely, 2^47785222 is an apocalyptic number.

47785222 is a deficient number, since it is larger than the sum of its proper divisors (23892614).

47785222 is a wasteful number, since it uses less digits than its factorization.

47785222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23892613.

The product of its digits is 62720, while the sum is 37.

The square root of 47785222 is about 6912.6855852122. The cubic root of 47785222 is about 362.8812559520.

It can be divided in two parts, 4778 and 5222, that added together give a 4-th power (10000 = 10⁴).

The spelling of 47785222 in words is "forty-seven million, seven hundred eighty-five thousand, two hundred twenty-two".