47724572 has 12 divisors (see below), whose sum is σ = 95449200. Its totient is φ = 20453376.

The previous prime is 47724571. The next prime is 47724581. The reversal of 47724572 is 27542774.

47724572 is an admirable number.

It is a hoax number, since the sum of its digits (38) 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 (47724571) 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 3 ways as a sum of consecutive naturals, for example, 852197 + ... + 852252.

It is an arithmetic number, because the mean of its divisors is an integer number (7954100).

Almost surely, 2^47724572 is an apocalyptic number.

It is an amenable number.

47724572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47724572 is a wasteful number, since it uses less digits than its factorization.

47724572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704460 (or 1704458 counting only the distinct ones).

The product of its digits is 109760, while the sum is 38.

The square root of 47724572 is about 6908.2973300228. The cubic root of 47724572 is about 362.7276654684.

The spelling of 47724572 in words is "forty-seven million, seven hundred twenty-four thousand, five hundred seventy-two".