85988969 has 4 divisors (see below), whose sum is σ = 93806160. Its totient is φ = 78171780.

The previous prime is 85988957. The next prime is 85988971. The reversal of 85988969 is 96988958.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85988969 - 2⁸ = 85988713 is a prime.

It is a super-2 number, since 2×85988969² = 14788205579365922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85988909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3908579 + ... + 3908600.

It is an arithmetic number, because the mean of its divisors is an integer number (23451540).

Almost surely, 2^85988969 is an apocalyptic number.

It is an amenable number.

85988969 is a deficient number, since it is larger than the sum of its proper divisors (7817191).

85988969 is a wasteful number, since it uses less digits than its factorization.

85988969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817190.

The product of its digits is 11197440, while the sum is 62.

The square root of 85988969 is about 9273.0237247621. The cubic root of 85988969 is about 441.3816229998.

It can be divided in two parts, 859889 and 69, that added together give a palindrome (859958).

The spelling of 85988969 in words is "eighty-five million, nine hundred eighty-eight thousand, nine hundred sixty-nine".