85964538 has 16 divisors (see below), whose sum is σ = 187559136. Its totient is φ = 26049840.

The previous prime is 85964537. The next prime is 85964587. The reversal of 85964538 is 83546958.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85964533) 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, 651181 + ... + 651312.

It is an arithmetic number, because the mean of its divisors is an integer number (11722446).

Almost surely, 2^85964538 is an apocalyptic number.

85964538 is an abundant number, since it is smaller than the sum of its proper divisors (101594598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85964538 is a wasteful number, since it uses less digits than its factorization.

85964538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302509.

The product of its digits is 1036800, while the sum is 48.

The square root of 85964538 is about 9271.7063154524. The cubic root of 85964538 is about 441.3398175761.

The spelling of 85964538 in words is "eighty-five million, nine hundred sixty-four thousand, five hundred thirty-eight".