88885821 has 4 divisors (see below), whose sum is σ = 118514432. Its totient is φ = 59257212.

The previous prime is 88885739. The next prime is 88885829. The reversal of 88885821 is 12858888.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 88885821 - 2¹³ = 88877629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88885829) 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 3 ways as a sum of consecutive naturals, for example, 14814301 + ... + 14814306.

It is an arithmetic number, because the mean of its divisors is an integer number (29628608).

Almost surely, 2^88885821 is an apocalyptic number.

It is an amenable number.

88885821 is a deficient number, since it is larger than the sum of its proper divisors (29628611).

88885821 is a wasteful number, since it uses less digits than its factorization.

88885821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29628610.

The product of its digits is 327680, while the sum is 48.

The square root of 88885821 is about 9427.9277150390. The cubic root of 88885821 is about 446.2834989643.

The spelling of 88885821 in words is "eighty-eight million, eight hundred eighty-five thousand, eight hundred twenty-one".