84457201 has 2 divisors, whose sum is σ = 84457202. Its totient is φ = 84457200.

The previous prime is 84457189. The next prime is 84457213. The reversal of 84457201 is 10275448.

It is a balanced prime because it is at equal distance from previous prime (84457189) and next prime (84457213).

It can be written as a sum of positive squares in only one way, i.e., 77440000 + 7017201 = 8800^2 + 2649^2 .

It is a cyclic number.

It is not a de Polignac number, because 84457201 - 2⁹ = 84456689 is a prime.

It is not a weakly prime, because it can be changed into another prime (84457291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42228600 + 42228601.

It is an arithmetic number, because the mean of its divisors is an integer number (42228601).

Almost surely, 2^84457201 is an apocalyptic number.

It is an amenable number.

84457201 is a deficient number, since it is larger than the sum of its proper divisors (1).

84457201 is an equidigital number, since it uses as much as digits as its factorization.

84457201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 84457201 is about 9190.0599018722. The cubic root of 84457201 is about 438.7450483880.

The spelling of 84457201 in words is "eighty-four million, four hundred fifty-seven thousand, two hundred one".