816348503 has 2 divisors, whose sum is σ = 816348504. Its totient is φ = 816348502.

The previous prime is 816348479. The next prime is 816348541. The reversal of 816348503 is 305843618.

It is an a-pointer prime, because the next prime (816348541) can be obtained adding 816348503 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816348503 - 2¹² = 816344407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816348563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408174251 + 408174252.

It is an arithmetic number, because the mean of its divisors is an integer number (408174252).

Almost surely, 2^816348503 is an apocalyptic number.

816348503 is a deficient number, since it is larger than the sum of its proper divisors (1).

816348503 is an equidigital number, since it uses as much as digits as its factorization.

816348503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 816348503 is about 28571.8130856269. The cubic root of 816348503 is about 934.5987594637.

The spelling of 816348503 in words is "eight hundred sixteen million, three hundred forty-eight thousand, five hundred three".