10819421 has 4 divisors (see below), whose sum is σ = 10902144. Its totient is φ = 10736700.

The previous prime is 10819363. The next prime is 10819427. The reversal of 10819421 is 12491801.

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 a cyclic number.

It is not a de Polignac number, because 10819421 - 2²² = 6625117 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 (10819427) 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 3 ways as a sum of consecutive naturals, for example, 41165 + ... + 41426.

It is an arithmetic number, because the mean of its divisors is an integer number (2725536).

Almost surely, 2^10819421 is an apocalyptic number.

It is an amenable number.

10819421 is a deficient number, since it is larger than the sum of its proper divisors (82723).

10819421 is an equidigital number, since it uses as much as digits as its factorization.

10819421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82722.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 10819421 is about 3289.2888289112. The cubic root of 10819421 is about 221.1743060887.

The spelling of 10819421 in words is "ten million, eight hundred nineteen thousand, four hundred twenty-one".