47578922 has 8 divisors (see below), whose sum is σ = 71414976. Its totient is φ = 23773932.

The previous prime is 47578919. The next prime is 47578931. The reversal of 47578922 is 22987574.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3458 + ... + 10349.

It is an arithmetic number, because the mean of its divisors is an integer number (8926872).

Almost surely, 2^47578922 is an apocalyptic number.

47578922 is a deficient number, since it is larger than the sum of its proper divisors (23836054).

47578922 is a wasteful number, since it uses less digits than its factorization.

47578922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15532.

The product of its digits is 282240, while the sum is 44.

The square root of 47578922 is about 6897.7476033847. The cubic root of 47578922 is about 362.3582881672.

It can be divided in two parts, 475 and 78922, that added together give a palindrome (79397).

The spelling of 47578922 in words is "forty-seven million, five hundred seventy-eight thousand, nine hundred twenty-two".