47231722 has 4 divisors (see below), whose sum is σ = 70847586. Its totient is φ = 23615860.

The previous prime is 47231711. The next prime is 47231747. The reversal of 47231722 is 22713274.

47231722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 46253601 + 978121 = 6801^2 + 989^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11807929 + ... + 11807932.

Almost surely, 2^47231722 is an apocalyptic number.

47231722 is a deficient number, since it is larger than the sum of its proper divisors (23615864).

47231722 is a wasteful number, since it uses less digits than its factorization.

47231722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23615863.

The product of its digits is 4704, while the sum is 28.

The square root of 47231722 is about 6872.5338849656. The cubic root of 47231722 is about 361.4747171269.

Adding to 47231722 its reverse (22713274), we get a palindrome (69944996).

The spelling of 47231722 in words is "forty-seven million, two hundred thirty-one thousand, seven hundred twenty-two".