84625573 has 2 divisors, whose sum is σ = 84625574. Its totient is φ = 84625572.

The previous prime is 84625571. The next prime is 84625603. The reversal of 84625573 is 37552648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 9941409 = 8642^2 + 3153^2 .

It is a cyclic number.

It is not a de Polignac number, because 84625573 - 2¹ = 84625571 is a prime.

It is a super-2 number, since 2×84625573² = 14322975211156658, which contains 22 as substring.

Together with 84625571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84625571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42312786 + 42312787.

It is an arithmetic number, because the mean of its divisors is an integer number (42312787).

Almost surely, 2^84625573 is an apocalyptic number.

It is an amenable number.

84625573 is a deficient number, since it is larger than the sum of its proper divisors (1).

84625573 is an equidigital number, since it uses as much as digits as its factorization.

84625573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 40.

The square root of 84625573 is about 9199.2158904985. The cubic root of 84625573 is about 439.0364123159.

The spelling of 84625573 in words is "eighty-four million, six hundred twenty-five thousand, five hundred seventy-three".