10026921 has 4 divisors (see below), whose sum is σ = 13369232. Its totient is φ = 6684612.

The previous prime is 10026901. The next prime is 10026943. The reversal of 10026921 is 12962001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10026921 - 2⁹ = 10026409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10026901) 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, 1671151 + ... + 1671156.

It is an arithmetic number, because the mean of its divisors is an integer number (3342308).

Almost surely, 2^10026921 is an apocalyptic number.

It is an amenable number.

10026921 is a deficient number, since it is larger than the sum of its proper divisors (3342311).

10026921 is an equidigital number, since it uses as much as digits as its factorization.

10026921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342310.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 10026921 is about 3166.5313830752. The cubic root of 10026921 is about 215.6366275603.

Adding to 10026921 its reverse (12962001), we get a palindrome (22988922).

The spelling of 10026921 in words is "ten million, twenty-six thousand, nine hundred twenty-one".