85939197 has 16 divisors (see below), whose sum is σ = 118778880. Its totient is φ = 55225152.

The previous prime is 85939127. The next prime is 85939207. The reversal of 85939197 is 79193958.

It is a happy number.

It is not a de Polignac number, because 85939197 - 2¹¹ = 85937149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85939127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8548 + ... + 15650.

It is an arithmetic number, because the mean of its divisors is an integer number (7423680).

Almost surely, 2^85939197 is an apocalyptic number.

It is an amenable number.

85939197 is a deficient number, since it is larger than the sum of its proper divisors (32839683).

85939197 is a wasteful number, since it uses less digits than its factorization.

85939197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252.

The product of its digits is 612360, while the sum is 51.

The square root of 85939197 is about 9270.3396377911. The cubic root of 85939197 is about 441.2964466245.

The spelling of 85939197 in words is "eighty-five million, nine hundred thirty-nine thousand, one hundred ninety-seven".