28069411 has 8 divisors (see below), whose sum is σ = 29089280. Its totient is φ = 27066312.

The previous prime is 28069409. The next prime is 28069439. The reversal of 28069411 is 11496082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28069411 - 2¹ = 28069409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28069451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735 + ... + 7528.

It is an arithmetic number, because the mean of its divisors is an integer number (3636160).

Almost surely, 2^28069411 is an apocalyptic number.

28069411 is a deficient number, since it is larger than the sum of its proper divisors (1019869).

28069411 is an equidigital number, since it uses as much as digits as its factorization.

28069411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8385.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 28069411 is about 5298.0572854585. The cubic root of 28069411 is about 303.9096099859.

The spelling of 28069411 in words is "twenty-eight million, sixty-nine thousand, four hundred eleven".