28899419 has 2 divisors, whose sum is σ = 28899420. Its totient is φ = 28899418.

The previous prime is 28899413. The next prime is 28899463. The reversal of 28899419 is 91499882.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28899419 is a prime.

It is a super-2 number, since 2×28899419² = 1670352837075122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28899413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14449709 + 14449710.

It is an arithmetic number, because the mean of its divisors is an integer number (14449710).

Almost surely, 2^28899419 is an apocalyptic number.

28899419 is a deficient number, since it is larger than the sum of its proper divisors (1).

28899419 is an equidigital number, since it uses as much as digits as its factorization.

28899419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 28899419 is about 5375.8179842699. The cubic root of 28899419 is about 306.8760795296.

The spelling of 28899419 in words is "twenty-eight million, eight hundred ninety-nine thousand, four hundred nineteen".