47564321 has 16 divisors (see below), whose sum is σ = 57552000. Its totient is φ = 38441088.

The previous prime is 47564303. The next prime is 47564347. The reversal of 47564321 is 12346574.

It is a de Polignac number, because none of the positive numbers 2^k-47564321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47564371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6005 + ... + 11453.

It is an arithmetic number, because the mean of its divisors is an integer number (3597000).

Almost surely, 2^47564321 is an apocalyptic number.

It is an amenable number.

47564321 is a deficient number, since it is larger than the sum of its proper divisors (9987679).

47564321 is a wasteful number, since it uses less digits than its factorization.

47564321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528.

The product of its digits is 20160, while the sum is 32.

The square root of 47564321 is about 6896.6891332001. The cubic root of 47564321 is about 362.3212175874.

The spelling of 47564321 in words is "forty-seven million, five hundred sixty-four thousand, three hundred twenty-one".