84953447 has 2 divisors, whose sum is σ = 84953448. Its totient is φ = 84953446.

The previous prime is 84953413. The next prime is 84953459. The reversal of 84953447 is 74435948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84953447 - 2¹⁴ = 84937063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84953398 and 84953407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84953497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42476723 + 42476724.

It is an arithmetic number, because the mean of its divisors is an integer number (42476724).

Almost surely, 2^84953447 is an apocalyptic number.

84953447 is a deficient number, since it is larger than the sum of its proper divisors (1).

84953447 is an equidigital number, since it uses as much as digits as its factorization.

84953447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 84953447 is about 9217.0194206153. The cubic root of 84953447 is about 439.6026836901.

The spelling of 84953447 in words is "eighty-four million, nine hundred fifty-three thousand, four hundred forty-seven".