85909011 has 8 divisors (see below), whose sum is σ = 114588624. Its totient is φ = 57251040.

The previous prime is 85909009. The next prime is 85909027. The reversal of 85909011 is 11090958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85909011 - 2¹ = 85909009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85979011) 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, 10765 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (14323578).

Almost surely, 2^85909011 is an apocalyptic number.

85909011 is a deficient number, since it is larger than the sum of its proper divisors (28679613).

85909011 is a wasteful number, since it uses less digits than its factorization.

85909011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10821.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 85909011 is about 9268.7113991105. The cubic root of 85909011 is about 441.2447723595.

Adding to 85909011 its reverse (11090958), we get a palindrome (96999969).

The spelling of 85909011 in words is "eighty-five million, nine hundred nine thousand, eleven".