816032647 has 2 divisors, whose sum is σ = 816032648. Its totient is φ = 816032646.

The previous prime is 816032603. The next prime is 816032687. The reversal of 816032647 is 746230618.

816032647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 816032647 - 2⁷ = 816032519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816032687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408016323 + 408016324.

It is an arithmetic number, because the mean of its divisors is an integer number (408016324).

Almost surely, 2^816032647 is an apocalyptic number.

816032647 is a deficient number, since it is larger than the sum of its proper divisors (1).

816032647 is an equidigital number, since it uses as much as digits as its factorization.

816032647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 816032647 is about 28566.2851452547. The cubic root of 816032647 is about 934.4782077202.

The spelling of 816032647 in words is "eight hundred sixteen million, thirty-two thousand, six hundred forty-seven".