88288993 has 16 divisors (see below), whose sum is σ = 98307216. Its totient is φ = 78762240.

The previous prime is 88288987. The next prime is 88289011. The reversal of 88288993 is 39988288.

It can be written as a sum of positive squares in 8 ways, for example, as 10549504 + 77739489 = 3248^2 + 8817^2 .

It is a cyclic number.

It is not a de Polignac number, because 88288993 - 2⁹ = 88288481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88288913) 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 15 ways as a sum of consecutive naturals, for example, 82683 + ... + 83743.

It is an arithmetic number, because the mean of its divisors is an integer number (6144201).

Almost surely, 2^88288993 is an apocalyptic number.

It is an amenable number.

88288993 is a deficient number, since it is larger than the sum of its proper divisors (10018223).

88288993 is a wasteful number, since it uses less digits than its factorization.

88288993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its digits is 1990656, while the sum is 55.

The square root of 88288993 is about 9396.2222728073. Note that the first 4 decimals coincide. The cubic root of 88288993 is about 445.2823911429.

The spelling of 88288993 in words is "eighty-eight million, two hundred eighty-eight thousand, nine hundred ninety-three".