816895351 has 2 divisors, whose sum is σ = 816895352. Its totient is φ = 816895350.

The previous prime is 816895333. The next prime is 816895397. The reversal of 816895351 is 153598618.

It is an a-pointer prime, because the next prime (816895397) can be obtained adding 816895351 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816895351 - 2⁷ = 816895223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816898351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408447675 + 408447676.

It is an arithmetic number, because the mean of its divisors is an integer number (408447676).

Almost surely, 2^816895351 is an apocalyptic number.

816895351 is a deficient number, since it is larger than the sum of its proper divisors (1).

816895351 is an equidigital number, since it uses as much as digits as its factorization.

816895351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 46.

The square root of 816895351 is about 28581.3811947568. The cubic root of 816895351 is about 934.8073996801.

The spelling of 816895351 in words is "eight hundred sixteen million, eight hundred ninety-five thousand, three hundred fifty-one".