10026399 has 4 divisors (see below), whose sum is σ = 13368536. Its totient is φ = 6684264.

The previous prime is 10026397. The next prime is 10026409. The reversal of 10026399 is 99362001.

10026399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10026399 - 2¹ = 10026397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10026397) 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, 1671064 + ... + 1671069.

It is an arithmetic number, because the mean of its divisors is an integer number (3342134).

Almost surely, 2^10026399 is an apocalyptic number.

10026399 is a deficient number, since it is larger than the sum of its proper divisors (3342137).

10026399 is an equidigital number, since it uses as much as digits as its factorization.

10026399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342136.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 10026399 is about 3166.4489574285. The cubic root of 10026399 is about 215.6328854919.

The spelling of 10026399 in words is "ten million, twenty-six thousand, three hundred ninety-nine".