28327419 has 12 divisors (see below), whose sum is σ = 40978392. Its totient is φ = 18856800.

The previous prime is 28327393. The next prime is 28327447. The reversal of 28327419 is 91472382.

It is not a de Polignac number, because 28327419 - 2¹⁹ = 27803131 is a prime.

It is a super-2 number, since 2×28327419² = 1604885334403122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28325419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5359 + ... + 9239.

It is an arithmetic number, because the mean of its divisors is an integer number (3414866).

Almost surely, 2^28327419 is an apocalyptic number.

28327419 is a deficient number, since it is larger than the sum of its proper divisors (12650973).

28327419 is a wasteful number, since it uses less digits than its factorization.

28327419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698 (or 4695 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 28327419 is about 5322.3508903491. The cubic root of 28327419 is about 304.8379287642.

It can be divided in two parts, 283 and 27419, that multiplied together give a palindrome (7759577).

The spelling of 28327419 in words is "twenty-eight million, three hundred twenty-seven thousand, four hundred nineteen".