88643121 has 16 divisors (see below), whose sum is σ = 135827328. Its totient is φ = 50371200.

The previous prime is 88643119. The next prime is 88643123. The reversal of 88643121 is 12134688.

It is an interprime number because it is at equal distance from previous prime (88643119) and next prime (88643123).

It is not a de Polignac number, because 88643121 - 2¹ = 88643119 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88643123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7860 + ... + 15461.

It is an arithmetic number, because the mean of its divisors is an integer number (8489208).

Almost surely, 2^88643121 is an apocalyptic number.

It is an amenable number.

88643121 is a deficient number, since it is larger than the sum of its proper divisors (47184207).

88643121 is a wasteful number, since it uses less digits than its factorization.

88643121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23512.

The product of its digits is 9216, while the sum is 33.

The square root of 88643121 is about 9415.0475835229. The cubic root of 88643121 is about 445.8769409195.

The spelling of 88643121 in words is "eighty-eight million, six hundred forty-three thousand, one hundred twenty-one".