85891527 has 12 divisors (see below), whose sum is σ = 124438080. Its totient is φ = 57089088.

The previous prime is 85891523. The next prime is 85891537. The reversal of 85891527 is 72519858.

It is a happy number.

It is not a de Polignac number, because 85891527 - 2² = 85891523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85891523) 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, 11127 + ... + 17192.

It is an arithmetic number, because the mean of its divisors is an integer number (10369840).

Almost surely, 2^85891527 is an apocalyptic number.

85891527 is a deficient number, since it is larger than the sum of its proper divisors (38546553).

85891527 is a wasteful number, since it uses less digits than its factorization.

85891527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28662 (or 28659 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 85891527 is about 9267.7681779380. The cubic root of 85891527 is about 441.2148366290.

The spelling of 85891527 in words is "eighty-five million, eight hundred ninety-one thousand, five hundred twenty-seven".