10088921 has 4 divisors (see below), whose sum is σ = 10279332. Its totient is φ = 9898512.

The previous prime is 10088917. The next prime is 10088959. The reversal of 10088921 is 12988001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2449225 + 7639696 = 1565^2 + 2764^2 .

It is a cyclic number.

It is not a de Polignac number, because 10088921 - 2² = 10088917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10085921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95126 + ... + 95231.

It is an arithmetic number, because the mean of its divisors is an integer number (2569833).

Almost surely, 2^10088921 is an apocalyptic number.

It is an amenable number.

10088921 is a deficient number, since it is larger than the sum of its proper divisors (190411).

10088921 is an equidigital number, since it uses as much as digits as its factorization.

10088921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190410.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 10088921 is about 3176.3061880115. The cubic root of 10088921 is about 216.0801671449.

The spelling of 10088921 in words is "ten million, eighty-eight thousand, nine hundred twenty-one".