10419821 has 4 divisors (see below), whose sum is σ = 10428000. Its totient is φ = 10411644.

The previous prime is 10419817. The next prime is 10419823. The reversal of 10419821 is 12891401.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12891401 = 179 ⋅72019.

It is a cyclic number.

It is not a de Polignac number, because 10419821 - 2² = 10419817 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 (10419823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721 + ... + 4878.

It is an arithmetic number, because the mean of its divisors is an integer number (2607000).

Almost surely, 2^10419821 is an apocalyptic number.

It is an amenable number.

10419821 is a deficient number, since it is larger than the sum of its proper divisors (8179).

10419821 is an equidigital number, since it uses as much as digits as its factorization.

10419821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178.

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

The square root of 10419821 is about 3227.9747520698. The cubic root of 10419821 is about 218.4171584711.

The spelling of 10419821 in words is "ten million, four hundred nineteen thousand, eight hundred twenty-one".