85456207 has 2 divisors, whose sum is σ = 85456208. Its totient is φ = 85456206.

The previous prime is 85456183. The next prime is 85456253. The reversal of 85456207 is 70265458.

It is a happy number.

85456207 is nontrivially palindromic in base 9.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85456207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85456507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42728103 + 42728104.

It is an arithmetic number, because the mean of its divisors is an integer number (42728104).

Almost surely, 2^85456207 is an apocalyptic number.

85456207 is a deficient number, since it is larger than the sum of its proper divisors (1).

85456207 is an equidigital number, since it uses as much as digits as its factorization.

85456207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 85456207 is about 9244.2526469153. The cubic root of 85456207 is about 440.4681776277.

The spelling of 85456207 in words is "eighty-five million, four hundred fifty-six thousand, two hundred seven".