28419619 has 2 divisors, whose sum is σ = 28419620. Its totient is φ = 28419618.

The previous prime is 28419593. The next prime is 28419641. The reversal of 28419619 is 91691482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28419619 - 2¹⁵ = 28386851 is a prime.

It is a super-2 number, since 2×28419619² = 1615349488210322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28410619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14209809 + 14209810.

It is an arithmetic number, because the mean of its divisors is an integer number (14209810).

Almost surely, 2^28419619 is an apocalyptic number.

28419619 is a deficient number, since it is larger than the sum of its proper divisors (1).

28419619 is an equidigital number, since it uses as much as digits as its factorization.

28419619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 28419619 is about 5331.0054398772. The cubic root of 28419619 is about 305.1682991247.

The spelling of 28419619 in words is "twenty-eight million, four hundred nineteen thousand, six hundred nineteen".