828215419 has 2 divisors, whose sum is σ = 828215420. Its totient is φ = 828215418.

The previous prime is 828215359. The next prime is 828215431. The reversal of 828215419 is 914512828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 828215419 - 2¹⁵ = 828182651 is a prime.

It is a super-2 number, since 2×828215419² = 1371881560538691122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (828215449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414107709 + 414107710.

It is an arithmetic number, because the mean of its divisors is an integer number (414107710).

Almost surely, 2^828215419 is an apocalyptic number.

828215419 is a deficient number, since it is larger than the sum of its proper divisors (1).

828215419 is an equidigital number, since it uses as much as digits as its factorization.

828215419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 40.

The square root of 828215419 is about 28778.7320603254. The cubic root of 828215419 is about 939.1056148814.

The spelling of 828215419 in words is "eight hundred twenty-eight million, two hundred fifteen thousand, four hundred nineteen".