47221567 has 2 divisors, whose sum is σ = 47221568. Its totient is φ = 47221566.

The previous prime is 47221547. The next prime is 47221591. The reversal of 47221567 is 76512274.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47221567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47221547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23610783 + 23610784.

It is an arithmetic number, because the mean of its divisors is an integer number (23610784).

Almost surely, 2^47221567 is an apocalyptic number.

47221567 is a deficient number, since it is larger than the sum of its proper divisors (1).

47221567 is an equidigital number, since it uses as much as digits as its factorization.

47221567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 47221567 is about 6871.7950347780. The cubic root of 47221567 is about 361.4488091234.

The spelling of 47221567 in words is "forty-seven million, two hundred twenty-one thousand, five hundred sixty-seven".