85303613 has 2 divisors, whose sum is σ = 85303614. Its totient is φ = 85303612.

The previous prime is 85303609. The next prime is 85303633. The reversal of 85303613 is 31630358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55905529 + 29398084 = 7477^2 + 5422^2 .

It is a cyclic number.

It is not a de Polignac number, because 85303613 - 2² = 85303609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85303633) 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, 42651806 + 42651807.

It is an arithmetic number, because the mean of its divisors is an integer number (42651807).

Almost surely, 2^85303613 is an apocalyptic number.

It is an amenable number.

85303613 is a deficient number, since it is larger than the sum of its proper divisors (1).

85303613 is an equidigital number, since it uses as much as digits as its factorization.

85303613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 85303613 is about 9235.9955067118. The cubic root of 85303613 is about 440.2058489289.

The spelling of 85303613 in words is "eighty-five million, three hundred three thousand, six hundred thirteen".