47586721 has 16 divisors (see below), whose sum is σ = 59148544. Its totient is φ = 37278144.

The previous prime is 47586719. The next prime is 47586727. The reversal of 47586721 is 12768574.

47586721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47586721 - 2¹ = 47586719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47586727) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 6835 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (3696784).

Almost surely, 2^47586721 is an apocalyptic number.

It is an amenable number.

47586721 is a deficient number, since it is larger than the sum of its proper divisors (11561823).

47586721 is a wasteful number, since it uses less digits than its factorization.

47586721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200.

The product of its digits is 94080, while the sum is 40.

The square root of 47586721 is about 6898.3129096903. The cubic root of 47586721 is about 362.3780859948.

The spelling of 47586721 in words is "forty-seven million, five hundred eighty-six thousand, seven hundred twenty-one".