28954441 has 4 divisors (see below), whose sum is σ = 29952900. Its totient is φ = 27955984.

The previous prime is 28954421. The next prime is 28954477. The reversal of 28954441 is 14445982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14445982 = 2 ⋅7222991.

It can be written as a sum of positive squares in 2 ways, for example, as 4748041 + 24206400 = 2179^2 + 4920^2 .

It is a cyclic number.

It is not a de Polignac number, because 28954441 - 2¹¹ = 28952393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28954441.

It is not an unprimeable number, because it can be changed into a prime (28954421) 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, 499186 + ... + 499243.

It is an arithmetic number, because the mean of its divisors is an integer number (7488225).

Almost surely, 2^28954441 is an apocalyptic number.

It is an amenable number.

28954441 is a deficient number, since it is larger than the sum of its proper divisors (998459).

28954441 is an equidigital number, since it uses as much as digits as its factorization.

28954441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998458.

The product of its digits is 46080, while the sum is 37.

The square root of 28954441 is about 5380.9330975213. The cubic root of 28954441 is about 307.0707112527.

The spelling of 28954441 in words is "twenty-eight million, nine hundred fifty-four thousand, four hundred forty-one".