84073261 has 2 divisors, whose sum is σ = 84073262. Its totient is φ = 84073260.

The previous prime is 84073237. The next prime is 84073331. The reversal of 84073261 is 16237048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59768361 + 24304900 = 7731^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 84073261 - 2⁵ = 84073229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84074261) 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, 42036630 + 42036631.

It is an arithmetic number, because the mean of its divisors is an integer number (42036631).

Almost surely, 2^84073261 is an apocalyptic number.

It is an amenable number.

84073261 is a deficient number, since it is larger than the sum of its proper divisors (1).

84073261 is an equidigital number, since it uses as much as digits as its factorization.

84073261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 84073261 is about 9169.1472340671. The cubic root of 84073261 is about 438.0791976080.

The spelling of 84073261 in words is "eighty-four million, seventy-three thousand, two hundred sixty-one".