88638869 has 8 divisors (see below), whose sum is σ = 97921920. Its totient is φ = 79560000.

The previous prime is 88638859. The next prime is 88638871. The reversal of 88638869 is 96883688.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88638869 - 2⁴ = 88638853 is a prime.

It is a super-2 number, since 2×88638869² = 15713698195198322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88638829) 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 7 ways as a sum of consecutive naturals, for example, 50132 + ... + 51869.

It is an arithmetic number, because the mean of its divisors is an integer number (12240240).

Almost surely, 2^88638869 is an apocalyptic number.

It is an amenable number.

88638869 is a deficient number, since it is larger than the sum of its proper divisors (9283051).

88638869 is a wasteful number, since it uses less digits than its factorization.

88638869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102091.

The product of its digits is 3981312, while the sum is 56.

The square root of 88638869 is about 9414.8217720783. The cubic root of 88638869 is about 445.8698115862.

The spelling of 88638869 in words is "eighty-eight million, six hundred thirty-eight thousand, eight hundred sixty-nine".