10219817 has 4 divisors (see below), whose sum is σ = 10300416. Its totient is φ = 10139220.

The previous prime is 10219813. The next prime is 10219819. The reversal of 10219817 is 71891201.

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 10219817 - 2² = 10219813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10219817.

It is not an unprimeable number, because it can be changed into a prime (10219813) 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, 40109 + ... + 40362.

It is an arithmetic number, because the mean of its divisors is an integer number (2575104).

Almost surely, 2^10219817 is an apocalyptic number.

It is an amenable number.

10219817 is a deficient number, since it is larger than the sum of its proper divisors (80599).

10219817 is an equidigital number, since it uses as much as digits as its factorization.

10219817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80598.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 10219817 is about 3196.8448507865. The cubic root of 10219817 is about 217.0106459840.

The spelling of 10219817 in words is "ten million, two hundred nineteen thousand, eight hundred seventeen".