47722988 has 6 divisors (see below), whose sum is σ = 83515236. Its totient is φ = 23861492.

The previous prime is 47722979. The next prime is 47722993. The reversal of 47722988 is 88922774.

It is a happy number.

47722988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5965370 + ... + 5965377.

It is an arithmetic number, because the mean of its divisors is an integer number (13919206).

Almost surely, 2^47722988 is an apocalyptic number.

It is an amenable number.

47722988 is a deficient number, since it is larger than the sum of its proper divisors (35792248).

47722988 is a wasteful number, since it uses less digits than its factorization.

47722988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11930751 (or 11930749 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 47722988 is about 6908.1826843244. The cubic root of 47722988 is about 362.7236523926.

The spelling of 47722988 in words is "forty-seven million, seven hundred twenty-two thousand, nine hundred eighty-eight".