85164463 has 2 divisors, whose sum is σ = 85164464. Its totient is φ = 85164462.

The previous prime is 85164451. The next prime is 85164473. The reversal of 85164463 is 36446158.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85164463 is a prime.

It is equal to p_4952683 and since 85164463 and 4952683 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85164433) 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, 42582231 + 42582232.

It is an arithmetic number, because the mean of its divisors is an integer number (42582232).

Almost surely, 2^85164463 is an apocalyptic number.

85164463 is a deficient number, since it is larger than the sum of its proper divisors (1).

85164463 is an equidigital number, since it uses as much as digits as its factorization.

85164463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 37.

The square root of 85164463 is about 9228.4594055563. The cubic root of 85164463 is about 439.9663593426.

The spelling of 85164463 in words is "eighty-five million, one hundred sixty-four thousand, four hundred sixty-three".