264198839 has 2 divisors, whose sum is σ = 264198840. Its totient is φ = 264198838.

The previous prime is 264198821. The next prime is 264198841. The reversal of 264198839 is 938891462.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264198839 - 2²⁴ = 247421623 is a prime.

Together with 264198841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264198239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132099419 + 132099420.

It is an arithmetic number, because the mean of its divisors is an integer number (132099420).

Almost surely, 2^264198839 is an apocalyptic number.

264198839 is a deficient number, since it is larger than the sum of its proper divisors (1).

264198839 is an equidigital number, since it uses as much as digits as its factorization.

264198839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 50.

The square root of 264198839 is about 16254.1945048040. The cubic root of 264198839 is about 641.6678818740.

The spelling of 264198839 in words is "two hundred sixty-four million, one hundred ninety-eight thousand, eight hundred thirty-nine".