88603821 has 16 divisors (see below), whose sum is σ = 138174400. Its totient is φ = 55959984.

The previous prime is 88603817. The next prime is 88603831. The reversal of 88603821 is 12830688.

It is not a de Polignac number, because 88603821 - 2² = 88603817 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 (88603831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85846 + ... + 86871.

It is an arithmetic number, because the mean of its divisors is an integer number (8635900).

Almost surely, 2^88603821 is an apocalyptic number.

It is an amenable number.

88603821 is a deficient number, since it is larger than the sum of its proper divisors (49570579).

88603821 is a wasteful number, since it uses less digits than its factorization.

88603821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172745 (or 172739 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 88603821 is about 9412.9602676310. The cubic root of 88603821 is about 445.8110378773.

The spelling of 88603821 in words is "eighty-eight million, six hundred three thousand, eight hundred twenty-one".