85213017 has 12 divisors (see below), whose sum is σ = 127056384. Its totient is φ = 54975960.

The previous prime is 85213003. The next prime is 85213019. The reversal of 85213017 is 71031258.

It is not a de Polignac number, because 85213017 - 2⁴ = 85213001 is a prime.

It is a super-2 number, since 2×85213017² = 14522516532484578, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85213019) 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, 152433 + ... + 152990.

It is an arithmetic number, because the mean of its divisors is an integer number (10588032).

Almost surely, 2^85213017 is an apocalyptic number.

It is an amenable number.

85213017 is a deficient number, since it is larger than the sum of its proper divisors (41843367).

85213017 is a wasteful number, since it uses less digits than its factorization.

85213017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305460 (or 305457 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 85213017 is about 9231.0896973218. The cubic root of 85213017 is about 440.0499547277.

The spelling of 85213017 in words is "eighty-five million, two hundred thirteen thousand, seventeen".