10389621 has 16 divisors (see below), whose sum is σ = 15220800. Its totient is φ = 6251520.

The previous prime is 10389607. The next prime is 10389647. The reversal of 10389621 is 12698301.

10389621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10389621 - 2⁷ = 10389493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10389671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3861 + ... + 5973.

It is an arithmetic number, because the mean of its divisors is an integer number (951300).

Almost surely, 2^10389621 is an apocalyptic number.

10389621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10389621 is a deficient number, since it is larger than the sum of its proper divisors (4831179).

10389621 is a wasteful number, since it uses less digits than its factorization.

10389621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 10389621 is about 3223.2935019945. The cubic root of 10389621 is about 218.2059398362.

The spelling of 10389621 in words is "ten million, three hundred eighty-nine thousand, six hundred twenty-one".