88634821 has 16 divisors (see below), whose sum is σ = 103066560. Its totient is φ = 75329280.

The previous prime is 88634813. The next prime is 88634851. The reversal of 88634821 is 12843688.

It is a cyclic number.

It is not a de Polignac number, because 88634821 - 2³ = 88634813 is a prime.

It is a super-2 number, since 2×88634821² = 15712262987404082, 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 (88634851) 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, 27850 + ... + 30868.

It is an arithmetic number, because the mean of its divisors is an integer number (6441660).

Almost surely, 2^88634821 is an apocalyptic number.

It is an amenable number.

88634821 is a deficient number, since it is larger than the sum of its proper divisors (14431739).

88634821 is a wasteful number, since it uses less digits than its factorization.

88634821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204.

The product of its digits is 73728, while the sum is 40.

The square root of 88634821 is about 9414.6067894522. The cubic root of 88634821 is about 445.8630240880.

The spelling of 88634821 in words is "eighty-eight million, six hundred thirty-four thousand, eight hundred twenty-one".