10128807 has 20 divisors (see below), whose sum is σ = 16296280. Its totient is φ = 6232464.

The previous prime is 10128803. The next prime is 10128817. The reversal of 10128807 is 70882101.

It is not a de Polignac number, because 10128807 - 2² = 10128803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128803) 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 19 ways as a sum of consecutive naturals, for example, 3757 + ... + 5862.

It is an arithmetic number, because the mean of its divisors is an integer number (814814).

Almost surely, 2^10128807 is an apocalyptic number.

10128807 is a deficient number, since it is larger than the sum of its proper divisors (6167473).

10128807 is an equidigital number, since it uses as much as digits as its factorization.

10128807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644 (or 9635 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 10128807 is about 3182.5786714550. The cubic root of 10128807 is about 216.3645464404.

The spelling of 10128807 in words is "ten million, one hundred twenty-eight thousand, eight hundred seven".