88098021 has 12 divisors (see below), whose sum is σ = 138821280. Its totient is φ = 53392680.

The previous prime is 88097993. The next prime is 88098067. The reversal of 88098021 is 12089088.

It is not a de Polignac number, because 88098021 - 2¹⁰ = 88096997 is a prime.

It is a super-2 number, since 2×88098021² = 15522522608232882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88098071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444841 + ... + 445038.

It is an arithmetic number, because the mean of its divisors is an integer number (11568440).

Almost surely, 2^88098021 is an apocalyptic number.

It is an amenable number.

88098021 is a deficient number, since it is larger than the sum of its proper divisors (50723259).

88098021 is a wasteful number, since it uses less digits than its factorization.

88098021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889896 (or 889893 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 88098021 is about 9386.0546024408. The cubic root of 88098021 is about 444.9611058882.

The spelling of 88098021 in words is "eighty-eight million, ninety-eight thousand, twenty-one".