10189639 has 4 divisors (see below), whose sum is σ = 10199160. Its totient is φ = 10180120.

The previous prime is 10189633. The next prime is 10189651. The reversal of 10189639 is 93698101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10189639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10189598 and 10189607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10189633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (2549790).

Almost surely, 2^10189639 is an apocalyptic number.

10189639 is a deficient number, since it is larger than the sum of its proper divisors (9521).

10189639 is an equidigital number, since it uses as much as digits as its factorization.

10189639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 10189639 is about 3192.1213949347. The cubic root of 10189639 is about 216.7968325018.

The spelling of 10189639 in words is "ten million, one hundred eighty-nine thousand, six hundred thirty-nine".