28106029 has 4 divisors (see below), whose sum is σ = 32121184. Its totient is φ = 24090876.

The previous prime is 28106027. The next prime is 28106077. The reversal of 28106029 is 92060182.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28106029 - 2¹ = 28106027 is a prime.

It is a super-2 number, since 2×28106029² = 1579897732297682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28105988 and 28106006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28106027) 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, 2007567 + ... + 2007580.

It is an arithmetic number, because the mean of its divisors is an integer number (8030296).

Almost surely, 2^28106029 is an apocalyptic number.

It is an amenable number.

28106029 is a deficient number, since it is larger than the sum of its proper divisors (4015155).

28106029 is an equidigital number, since it uses as much as digits as its factorization.

28106029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015154.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 28106029 is about 5301.5119541504. The cubic root of 28106029 is about 304.0417078337.

The spelling of 28106029 in words is "twenty-eight million, one hundred six thousand, twenty-nine".