816212807 has 2 divisors, whose sum is σ = 816212808. Its totient is φ = 816212806.

The previous prime is 816212791. The next prime is 816212809. The reversal of 816212807 is 708212618.

816212807 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 816212807 - 2⁴ = 816212791 is a prime.

Together with 816212809, 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 (816212809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408106403 + 408106404.

It is an arithmetic number, because the mean of its divisors is an integer number (408106404).

Almost surely, 2^816212807 is an apocalyptic number.

816212807 is a deficient number, since it is larger than the sum of its proper divisors (1).

816212807 is an equidigital number, since it uses as much as digits as its factorization.

816212807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 816212807 is about 28569.4383388963. The cubic root of 816212807 is about 934.5469726185.

The spelling of 816212807 in words is "eight hundred sixteen million, two hundred twelve thousand, eight hundred seven".