816802379 has 2 divisors, whose sum is σ = 816802380. Its totient is φ = 816802378.

The previous prime is 816802333. The next prime is 816802403. The reversal of 816802379 is 973208618.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816802379 is a prime.

It is a super-3 number, since 3×816802379³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (816802309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408401189 + 408401190.

It is an arithmetic number, because the mean of its divisors is an integer number (408401190).

Almost surely, 2^816802379 is an apocalyptic number.

816802379 is a deficient number, since it is larger than the sum of its proper divisors (1).

816802379 is an equidigital number, since it uses as much as digits as its factorization.

816802379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 816802379 is about 28579.7547050355. The cubic root of 816802379 is about 934.7719344230.

The spelling of 816802379 in words is "eight hundred sixteen million, eight hundred two thousand, three hundred seventy-nine".