88353981 has 24 divisors (see below), whose sum is σ = 139796280. Its totient is φ = 53523456.

The previous prime is 88353943. The next prime is 88353989. The reversal of 88353981 is 18935388.

It can be written as a sum of positive squares in 4 ways, for example, as 4796100 + 83557881 = 2190^2 + 9141^2 .

It is not a de Polignac number, because 88353981 - 2⁶ = 88353917 is a prime.

It is a super-2 number, since 2×88353981² = 15612851917096722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88353989) 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 23 ways as a sum of consecutive naturals, for example, 5520 + ... + 14393.

It is an arithmetic number, because the mean of its divisors is an integer number (5824845).

Almost surely, 2^88353981 is an apocalyptic number.

It is an amenable number.

88353981 is a deficient number, since it is larger than the sum of its proper divisors (51442299).

88353981 is a wasteful number, since it uses less digits than its factorization.

88353981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19965 (or 19962 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 88353981 is about 9399.6798349731. The cubic root of 88353981 is about 445.3916192347.

The spelling of 88353981 in words is "eighty-eight million, three hundred fifty-three thousand, nine hundred eighty-one".