88773220 has 24 divisors (see below), whose sum is σ = 187508664. Its totient is φ = 35302656.

The previous prime is 88773211. The next prime is 88773221. The reversal of 88773220 is 2237788.

It can be written as a sum of positive squares in 4 ways, for example, as 17505856 + 71267364 = 4184^2 + 8442^2 .

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 88773220.

It is not an unprimeable number, because it can be changed into a prime (88773221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9369 + ... + 16288.

It is an arithmetic number, because the mean of its divisors is an integer number (7812861).

Almost surely, 2^88773220 is an apocalyptic number.

It is an amenable number.

88773220 is an abundant number, since it is smaller than the sum of its proper divisors (98735444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88773220 is a wasteful number, since it uses less digits than its factorization.

88773220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25839 (or 25837 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 88773220 is about 9421.9541497505. The cubic root of 88773220 is about 446.0949679460.

The spelling of 88773220 in words is "eighty-eight million, seven hundred seventy-three thousand, two hundred twenty".