85013613 has 12 divisors (see below), whose sum is σ = 124064668. Its totient is φ = 56090880.

The previous prime is 85013611. The next prime is 85013627. The reversal of 85013613 is 31631058.

It can be written as a sum of positive squares in 2 ways, for example, as 55398249 + 29615364 = 7443^2 + 5442^2 .

It is not a de Polignac number, because 85013613 - 2¹ = 85013611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85013611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47818 + ... + 49563.

Almost surely, 2^85013613 is an apocalyptic number.

It is an amenable number.

85013613 is a deficient number, since it is larger than the sum of its proper divisors (39051055).

85013613 is a wasteful number, since it uses less digits than its factorization.

85013613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97484 (or 97481 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 85013613 is about 9220.2826963169. The cubic root of 85013613 is about 439.7064381363.

The spelling of 85013613 in words is "eighty-five million, thirteen thousand, six hundred thirteen".