85706613 has 8 divisors (see below), whose sum is σ = 126972800. Its totient is φ = 57137724.

The previous prime is 85706597. The next prime is 85706627. The reversal of 85706613 is 31660758.

It is not a de Polignac number, because 85706613 - 2⁴ = 85706597 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 (85706633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587133 + ... + 1587186.

It is an arithmetic number, because the mean of its divisors is an integer number (15871600).

Almost surely, 2^85706613 is an apocalyptic number.

It is an amenable number.

85706613 is a deficient number, since it is larger than the sum of its proper divisors (41266187).

85706613 is a wasteful number, since it uses less digits than its factorization.

85706613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174328 (or 3174322 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 85706613 is about 9257.7866145208. The cubic root of 85706613 is about 440.8979818623.

The spelling of 85706613 in words is "eighty-five million, seven hundred six thousand, six hundred thirteen".