47722864 has 60 divisors (see below), whose sum is σ = 111321000. Its totient is φ = 19737984.

The previous prime is 47722853. The next prime is 47722867. The reversal of 47722864 is 46822774.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47722867) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 21687 + ... + 23785.

It is an arithmetic number, because the mean of its divisors is an integer number (1855350).

Almost surely, 2^47722864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47722864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55660500).

47722864 is an abundant number, since it is smaller than the sum of its proper divisors (63598136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47722864 is a wasteful number, since it uses less digits than its factorization.

47722864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150 (or 2137 counting only the distinct ones).

The product of its digits is 150528, while the sum is 40.

The square root of 47722864 is about 6908.1737094546. The cubic root of 47722864 is about 362.7233382339.

The spelling of 47722864 in words is "forty-seven million, seven hundred twenty-two thousand, eight hundred sixty-four".