816242411 has 2 divisors, whose sum is σ = 816242412. Its totient is φ = 816242410.

The previous prime is 816242387. The next prime is 816242417. The reversal of 816242411 is 114242618.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816242411 is a prime.

It is not a weakly prime, because it can be changed into another prime (816242417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408121205 + 408121206.

It is an arithmetic number, because the mean of its divisors is an integer number (408121206).

Almost surely, 2^816242411 is an apocalyptic number.

816242411 is a deficient number, since it is larger than the sum of its proper divisors (1).

816242411 is an equidigital number, since it uses as much as digits as its factorization.

816242411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 29.

The square root of 816242411 is about 28569.9564402888. The cubic root of 816242411 is about 934.5582711401.

The spelling of 816242411 in words is "eight hundred sixteen million, two hundred forty-two thousand, four hundred eleven".