85386523 has 2 divisors, whose sum is σ = 85386524. Its totient is φ = 85386522.

The previous prime is 85386503. The next prime is 85386533. The reversal of 85386523 is 32568358.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85386523 - 2⁹ = 85386011 is a prime.

It is not a weakly prime, because it can be changed into another prime (85386503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42693261 + 42693262.

It is an arithmetic number, because the mean of its divisors is an integer number (42693262).

Almost surely, 2^85386523 is an apocalyptic number.

85386523 is a deficient number, since it is larger than the sum of its proper divisors (1).

85386523 is an equidigital number, since it uses as much as digits as its factorization.

85386523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 85386523 is about 9240.4828337052. The cubic root of 85386523 is about 440.3484206504.

The spelling of 85386523 in words is "eighty-five million, three hundred eighty-six thousand, five hundred twenty-three".