47639573 has 2 divisors, whose sum is σ = 47639574. Its totient is φ = 47639572.

The previous prime is 47639567. The next prime is 47639617. The reversal of 47639573 is 37593674.

It is an a-pointer prime, because the next prime (47639617) can be obtained adding 47639573 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24039409 + 23600164 = 4903^2 + 4858^2 .

It is a cyclic number.

It is not a de Polignac number, because 47639573 - 2¹² = 47635477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47639533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23819786 + 23819787.

It is an arithmetic number, because the mean of its divisors is an integer number (23819787).

Almost surely, 2^47639573 is an apocalyptic number.

It is an amenable number.

47639573 is a deficient number, since it is larger than the sum of its proper divisors (1).

47639573 is an equidigital number, since it uses as much as digits as its factorization.

47639573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 44.

The square root of 47639573 is about 6902.1426383406. The cubic root of 47639573 is about 362.5121942786.

The spelling of 47639573 in words is "forty-seven million, six hundred thirty-nine thousand, five hundred seventy-three".