89161611 has 32 divisors (see below), whose sum is σ = 153010176. Its totient is φ = 44820000.

The previous prime is 89161607. The next prime is 89161619. The reversal of 89161611 is 11616198.

It is not a de Polignac number, because 89161611 - 2² = 89161607 is a prime.

It is a super-2 number, since 2×89161611² = 15899585752230642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (89161619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 936 + ... + 13386.

It is an arithmetic number, because the mean of its divisors is an integer number (4781568).

Almost surely, 2^89161611 is an apocalyptic number.

89161611 is a deficient number, since it is larger than the sum of its proper divisors (63848565).

89161611 is a wasteful number, since it uses less digits than its factorization.

89161611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12503.

The product of its digits is 2592, while the sum is 33.

The square root of 89161611 is about 9442.5426130889. The cubic root of 89161611 is about 446.7445903133.

It can be divided in two parts, 8 and 9161611, that added together give a palindrome (9161619).

The spelling of 89161611 in words is "eighty-nine million, one hundred sixty-one thousand, six hundred eleven".