10128867 has 16 divisors (see below), whose sum is σ = 15689472. Its totient is φ = 5692320.

The previous prime is 10128841. The next prime is 10128869. The reversal of 10128867 is 76882101.

It is a happy number.

It is not a de Polignac number, because 10128867 - 2⁶ = 10128803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10128869) 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, 2673 + ... + 5234.

It is an arithmetic number, because the mean of its divisors is an integer number (980592).

Almost surely, 2^10128867 is an apocalyptic number.

10128867 is a deficient number, since it is larger than the sum of its proper divisors (5560605).

10128867 is an equidigital number, since it uses as much as digits as its factorization.

10128867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 10128867 is about 3182.5880977594. The cubic root of 10128867 is about 216.3649736657.

The spelling of 10128867 in words is "ten million, one hundred twenty-eight thousand, eight hundred sixty-seven".