84040273 has 2 divisors, whose sum is σ = 84040274. Its totient is φ = 84040272.

The previous prime is 84040267. The next prime is 84040303. The reversal of 84040273 is 37204048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43996689 + 40043584 = 6633^2 + 6328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84040273 is a prime.

It is not a weakly prime, because it can be changed into another prime (84040213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42020136 + 42020137.

It is an arithmetic number, because the mean of its divisors is an integer number (42020137).

Almost surely, 2^84040273 is an apocalyptic number.

It is an amenable number.

84040273 is a deficient number, since it is larger than the sum of its proper divisors (1).

84040273 is an equidigital number, since it uses as much as digits as its factorization.

84040273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 84040273 is about 9167.3481989068. The cubic root of 84040273 is about 438.0218934311.

The spelling of 84040273 in words is "eighty-four million, forty thousand, two hundred seventy-three".