88685221 has 8 divisors (see below), whose sum is σ = 90883584. Its totient is φ = 86493120.

The previous prime is 88685167. The next prime is 88685231. The reversal of 88685221 is 12258688.

It is a happy number.

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 88685221 - 2⁹ = 88684709 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 (88685231) 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 7 ways as a sum of consecutive naturals, for example, 40956 + ... + 43066.

It is an arithmetic number, because the mean of its divisors is an integer number (11360448).

Almost surely, 2^88685221 is an apocalyptic number.

It is an amenable number.

88685221 is a deficient number, since it is larger than the sum of its proper divisors (2198363).

88685221 is a wasteful number, since it uses less digits than its factorization.

88685221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131.

The product of its digits is 61440, while the sum is 40.

The square root of 88685221 is about 9417.2831007674. The cubic root of 88685221 is about 445.9475177374.

The spelling of 88685221 in words is "eighty-eight million, six hundred eighty-five thousand, two hundred twenty-one".