10105989 has 8 divisors (see below), whose sum is σ = 13788192. Its totient is φ = 6580560.

The previous prime is 10105961. The next prime is 10106017. The reversal of 10105989 is 98950101.

It is an interprime number because it is at equal distance from previous prime (10105961) and next prime (10106017).

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

It is not a de Polignac number, because 10105989 - 2⁵ = 10105957 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10105919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39042 + ... + 39299.

It is an arithmetic number, because the mean of its divisors is an integer number (1723524).

Almost surely, 2^10105989 is an apocalyptic number.

It is an amenable number.

10105989 is a deficient number, since it is larger than the sum of its proper divisors (3682203).

10105989 is an equidigital number, since it uses as much as digits as its factorization.

10105989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78387.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 10105989 is about 3178.9918213169. The cubic root of 10105989 is about 216.2019501873.

The spelling of 10105989 in words is "ten million, one hundred five thousand, nine hundred eighty-nine".