12028207 has 4 divisors (see below), whose sum is σ = 12108016. Its totient is φ = 11948400.

The previous prime is 12028201. The next prime is 12028213. The reversal of 12028207 is 70282021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12028201) and next prime (12028213).

It is a cyclic number.

It is not a de Polignac number, because 12028207 - 2¹¹ = 12026159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028201) 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, 39678 + ... + 39979.

It is an arithmetic number, because the mean of its divisors is an integer number (3027004).

Almost surely, 2^12028207 is an apocalyptic number.

12028207 is a deficient number, since it is larger than the sum of its proper divisors (79809).

12028207 is an equidigital number, since it uses as much as digits as its factorization.

12028207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79808.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12028207 is about 3468.1705552063. The cubic root of 12028207 is about 229.1220912236.

It can be divided in two parts, 12028 and 207, that multiplied together give a triangular number (2489796 = T₂₂₃₁).

The spelling of 12028207 in words is "twelve million, twenty-eight thousand, two hundred seven".