84725213 has 2 divisors, whose sum is σ = 84725214. Its totient is φ = 84725212.

The previous prime is 84725203. The next prime is 84725219. The reversal of 84725213 is 31252748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82773604 + 1951609 = 9098^2 + 1397^2 .

It is a cyclic number.

It is not a de Polignac number, because 84725213 - 2⁴ = 84725197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84725213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84725219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42362606 + 42362607.

It is an arithmetic number, because the mean of its divisors is an integer number (42362607).

Almost surely, 2^84725213 is an apocalyptic number.

It is an amenable number.

84725213 is a deficient number, since it is larger than the sum of its proper divisors (1).

84725213 is an equidigital number, since it uses as much as digits as its factorization.

84725213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 84725213 is about 9204.6299762674. The cubic root of 84725213 is about 439.2086550899.

The spelling of 84725213 in words is "eighty-four million, seven hundred twenty-five thousand, two hundred thirteen".