84784573 has 2 divisors, whose sum is σ = 84784574. Its totient is φ = 84784572.

The previous prime is 84784561. The next prime is 84784619. The reversal of 84784573 is 37548748.

It is an a-pointer prime, because the next prime (84784619) can be obtained adding 84784573 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68608089 + 16176484 = 8283^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 84784573 - 2⁵ = 84784541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84784543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42392286 + 42392287.

It is an arithmetic number, because the mean of its divisors is an integer number (42392287).

Almost surely, 2^84784573 is an apocalyptic number.

It is an amenable number.

84784573 is a deficient number, since it is larger than the sum of its proper divisors (1).

84784573 is an equidigital number, since it uses as much as digits as its factorization.

84784573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 46.

The square root of 84784573 is about 9207.8538759040. The cubic root of 84784573 is about 439.3112036250.

The spelling of 84784573 in words is "eighty-four million, seven hundred eighty-four thousand, five hundred seventy-three".