10028866 has 4 divisors (see below), whose sum is σ = 15043302. Its totient is φ = 5014432.

The previous prime is 10028849. The next prime is 10028869. The reversal of 10028866 is 66882001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66882001 = 1031 ⋅64871.

It can be written as a sum of positive squares in only one way, i.e., 8970025 + 1058841 = 2995^2 + 1029^2 .

It is not an unprimeable number, because it can be changed into a prime (10028869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507215 + ... + 2507218.

Almost surely, 2^10028866 is an apocalyptic number.

10028866 is a deficient number, since it is larger than the sum of its proper divisors (5014436).

10028866 is an equidigital number, since it uses as much as digits as its factorization.

10028866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014435.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 10028866 is about 3166.8384865667. The cubic root of 10028866 is about 215.6505695645.

The spelling of 10028866 in words is "ten million, twenty-eight thousand, eight hundred sixty-six".