10389945 has 8 divisors (see below), whose sum is σ = 16623936. Its totient is φ = 5541296.

The previous prime is 10389937. The next prime is 10389983. The reversal of 10389945 is 54998301.

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 10389945 - 2³ = 10389937 is a prime.

It is an unprimeable number.

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, 346317 + ... + 346346.

It is an arithmetic number, because the mean of its divisors is an integer number (2077992).

Almost surely, 2^10389945 is an apocalyptic number.

10389945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10389945 is a deficient number, since it is larger than the sum of its proper divisors (6233991).

10389945 is an equidigital number, since it uses as much as digits as its factorization.

10389945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692671.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 10389945 is about 3223.3437607553. The cubic root of 10389945 is about 218.2082080611.

The spelling of 10389945 in words is "ten million, three hundred eighty-nine thousand, nine hundred forty-five".