12028955 has 4 divisors (see below), whose sum is σ = 14434752. Its totient is φ = 9623160.

The previous prime is 12028943. The next prime is 12028967. The reversal of 12028955 is 55982021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55982021 = 73 ⋅766877.

It is an interprime number because it is at equal distance from previous prime (12028943) and next prime (12028967).

It is not a de Polignac number, because 12028955 - 2⁸ = 12028699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1202891 + ... + 1202900.

It is an arithmetic number, because the mean of its divisors is an integer number (3608688).

Almost surely, 2^12028955 is an apocalyptic number.

12028955 is a deficient number, since it is larger than the sum of its proper divisors (2405797).

12028955 is an equidigital number, since it uses as much as digits as its factorization.

12028955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405796.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 12028955 is about 3468.2783913636. The cubic root of 12028955 is about 229.1268406090.

The spelling of 12028955 in words is "twelve million, twenty-eight thousand, nine hundred fifty-five".