85584623 has 2 divisors, whose sum is σ = 85584624. Its totient is φ = 85584622.

The previous prime is 85584601. The next prime is 85584659. The reversal of 85584623 is 32648558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85584623 - 2¹² = 85580527 is a prime.

It is a Sophie Germain prime.

It is equal to p_4975736 and since 85584623 and 4975736 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 (85584823) 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, 42792311 + 42792312.

It is an arithmetic number, because the mean of its divisors is an integer number (42792312).

Almost surely, 2^85584623 is an apocalyptic number.

85584623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85584623 is an equidigital number, since it uses as much as digits as its factorization.

85584623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 41.

The square root of 85584623 is about 9251.1957605490. The cubic root of 85584623 is about 440.6886993601.

The spelling of 85584623 in words is "eighty-five million, five hundred eighty-four thousand, six hundred twenty-three".