10389819 has 16 divisors (see below), whose sum is σ = 15171840. Its totient is φ = 6272160.

The previous prime is 10389817. The next prime is 10389823. The reversal of 10389819 is 91898301.

It is a happy number.

It is not a de Polignac number, because 10389819 - 2¹ = 10389817 is a prime.

It is a super-2 number, since 2×10389819² = 215896677705522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10389817) 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 15 ways as a sum of consecutive naturals, for example, 11409 + ... + 12285.

It is an arithmetic number, because the mean of its divisors is an integer number (948240).

Almost surely, 2^10389819 is an apocalyptic number.

10389819 is a deficient number, since it is larger than the sum of its proper divisors (4782021).

10389819 is a wasteful number, since it uses less digits than its factorization.

10389819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 10389819 is about 3223.3242157748. The cubic root of 10389819 is about 218.2073259792.

The spelling of 10389819 in words is "ten million, three hundred eighty-nine thousand, eight hundred nineteen".