28397411 has 6 divisors (see below), whose sum is σ = 33033780. Its totient is φ = 24340596.

The previous prime is 28397407. The next prime is 28397417. The reversal of 28397411 is 11479382.

It is not a de Polignac number, because 28397411 - 2² = 28397407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28397417) 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, 289721 + ... + 289818.

It is an arithmetic number, because the mean of its divisors is an integer number (5505630).

Almost surely, 2^28397411 is an apocalyptic number.

28397411 is a deficient number, since it is larger than the sum of its proper divisors (4636369).

28397411 is an equidigital number, since it uses as much as digits as its factorization.

28397411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579553 (or 579546 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 28397411 is about 5328.9221236569. The cubic root of 28397411 is about 305.0887889847.

The spelling of 28397411 in words is "twenty-eight million, three hundred ninety-seven thousand, four hundred eleven".