84893213 has 2 divisors, whose sum is σ = 84893214. Its totient is φ = 84893212.

The previous prime is 84893177. The next prime is 84893219. The reversal of 84893213 is 31239848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75394489 + 9498724 = 8683^2 + 3082^2 .

It is a cyclic number.

It is not a de Polignac number, because 84893213 - 2¹⁴ = 84876829 is a prime.

It is a super-2 number, since 2×84893213² = 14413715226926738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84893219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42446606 + 42446607.

It is an arithmetic number, because the mean of its divisors is an integer number (42446607).

Almost surely, 2^84893213 is an apocalyptic number.

It is an amenable number.

84893213 is a deficient number, since it is larger than the sum of its proper divisors (1).

84893213 is an equidigital number, since it uses as much as digits as its factorization.

84893213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 84893213 is about 9213.7512990095. The cubic root of 84893213 is about 439.4987628976.

The spelling of 84893213 in words is "eighty-four million, eight hundred ninety-three thousand, two hundred thirteen".