88018821 has 24 divisors (see below), whose sum is σ = 139014720. Its totient is φ = 53222400.

The previous prime is 88018813. The next prime is 88018823. The reversal of 88018821 is 12881088.

It is a happy number.

It is not a de Polignac number, because 88018821 - 2³ = 88018813 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88018823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61765 + ... + 63173.

It is an arithmetic number, because the mean of its divisors is an integer number (5792280).

Almost surely, 2^88018821 is an apocalyptic number.

It is an amenable number.

88018821 is a deficient number, since it is larger than the sum of its proper divisors (50995899).

88018821 is a wasteful number, since it uses less digits than its factorization.

88018821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 88018821 is about 9381.8346286854. The cubic root of 88018821 is about 444.8277261029.

It can be divided in two parts, 880 and 18821, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 88018821 in words is "eighty-eight million, eighteen thousand, eight hundred twenty-one".