28414169 has 6 divisors (see below), whose sum is σ = 33053274. Its totient is φ = 24354960.

The previous prime is 28414147. The next prime is 28414181. The reversal of 28414169 is 96141482.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23396569 + 5017600 = 4837^2 + 2240^2 .

It is not a de Polignac number, because 28414169 - 2²⁰ = 27365593 is a prime.

It is a super-2 number, since 2×28414169² = 1614729999921122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28414109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289892 + ... + 289989.

It is an arithmetic number, because the mean of its divisors is an integer number (5508879).

Almost surely, 2^28414169 is an apocalyptic number.

It is an amenable number.

28414169 is a deficient number, since it is larger than the sum of its proper divisors (4639105).

28414169 is an equidigital number, since it uses as much as digits as its factorization.

28414169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579895 (or 579888 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 28414169 is about 5330.4942547572. The cubic root of 28414169 is about 305.1487906113.

The spelling of 28414169 in words is "twenty-eight million, four hundred fourteen thousand, one hundred sixty-nine".