88109813 has 16 divisors (see below), whose sum is σ = 97636416. Its totient is φ = 78848640.

The previous prime is 88109807. The next prime is 88109831. The reversal of 88109813 is 31890188.

It is a cyclic number.

It is not a de Polignac number, because 88109813 - 2¹⁴ = 88093429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88109863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281345 + ... + 281657.

It is an arithmetic number, because the mean of its divisors is an integer number (6102276).

Almost surely, 2^88109813 is an apocalyptic number.

It is an amenable number.

88109813 is a deficient number, since it is larger than the sum of its proper divisors (9526603).

88109813 is a wasteful number, since it uses less digits than its factorization.

88109813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 88109813 is about 9386.6827473821. The cubic root of 88109813 is about 444.9809578183.

It can be divided in two parts, 88 and 109813, that added together give a palindrome (109901).

The spelling of 88109813 in words is "eighty-eight million, one hundred nine thousand, eight hundred thirteen".