26830819 has 2 divisors, whose sum is σ = 26830820. Its totient is φ = 26830818.

The previous prime is 26830813. The next prime is 26830823. The reversal of 26830819 is 91803862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26830819 - 2⁵ = 26830787 is a prime.

It is a super-2 number, since 2×26830819² = 1439785696421522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26830813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13415409 + 13415410.

It is an arithmetic number, because the mean of its divisors is an integer number (13415410).

Almost surely, 2^26830819 is an apocalyptic number.

26830819 is a deficient number, since it is larger than the sum of its proper divisors (1).

26830819 is an equidigital number, since it uses as much as digits as its factorization.

26830819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 26830819 is about 5179.8473915744. The cubic root of 26830819 is about 299.3720903857.

The spelling of 26830819 in words is "twenty-six million, eight hundred thirty thousand, eight hundred nineteen".