28941479 has 4 divisors (see below), whose sum is σ = 33075984. Its totient is φ = 24806976.

The previous prime is 28941469. The next prime is 28941487. The reversal of 28941479 is 97414982.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28941479 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 (28941439) 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, 2067242 + ... + 2067255.

It is an arithmetic number, because the mean of its divisors is an integer number (8268996).

Almost surely, 2^28941479 is an apocalyptic number.

28941479 is a deficient number, since it is larger than the sum of its proper divisors (4134505).

28941479 is an equidigital number, since it uses as much as digits as its factorization.

28941479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134504.

The product of its digits is 145152, while the sum is 44.

The square root of 28941479 is about 5379.7285247492. The cubic root of 28941479 is about 307.0248824205.

The spelling of 28941479 in words is "twenty-eight million, nine hundred forty-one thousand, four hundred seventy-nine".