10219909 has 8 divisors (see below), whose sum is σ = 11708928. Its totient is φ = 8738160.

The previous prime is 10219903. The next prime is 10219933. The reversal of 10219909 is 90991201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10219909 - 2⁵ = 10219877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10219903) 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 7 ways as a sum of consecutive naturals, for example, 1644 + ... + 4810.

It is an arithmetic number, because the mean of its divisors is an integer number (1463616).

Almost surely, 2^10219909 is an apocalyptic number.

It is an amenable number.

10219909 is a deficient number, since it is larger than the sum of its proper divisors (1489019).

10219909 is an equidigital number, since it uses as much as digits as its factorization.

10219909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 10219909 is about 3196.8592399416. The cubic root of 10219909 is about 217.0112971672.

The spelling of 10219909 in words is "ten million, two hundred nineteen thousand, nine hundred nine".