88121611 has 4 divisors (see below), whose sum is σ = 88186000. Its totient is φ = 88057224.

The previous prime is 88121603. The next prime is 88121641. The reversal of 88121611 is 11612188.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88121611 - 2³ = 88121603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88121611.

It is not an unprimeable number, because it can be changed into a prime (88121641) 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, 30096 + ... + 32893.

It is an arithmetic number, because the mean of its divisors is an integer number (22046500).

Almost surely, 2^88121611 is an apocalyptic number.

88121611 is a deficient number, since it is larger than the sum of its proper divisors (64389).

88121611 is a wasteful number, since it uses less digits than its factorization.

88121611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64388.

The product of its digits is 768, while the sum is 28.

The square root of 88121611 is about 9387.3111698718. The cubic root of 88121611 is about 445.0008180770. Note that the first 3 decimals are identical.

Adding to 88121611 its reverse (11612188), we get a palindrome (99733799).

The spelling of 88121611 in words is "eighty-eight million, one hundred twenty-one thousand, six hundred eleven".