816350297 has 4 divisors (see below), whose sum is σ = 932971776. Its totient is φ = 699728820.

The previous prime is 816350291. The next prime is 816350317. The reversal of 816350297 is 792053618.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 816350297 - 2⁴ = 816350281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816350291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58310729 + ... + 58310742.

It is an arithmetic number, because the mean of its divisors is an integer number (233242944).

Almost surely, 2^816350297 is an apocalyptic number.

It is an amenable number.

816350297 is a deficient number, since it is larger than the sum of its proper divisors (116621479).

816350297 is a wasteful number, since it uses less digits than its factorization.

816350297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116621478.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 816350297 is about 28571.8444801871. The cubic root of 816350297 is about 934.5994440851.

The spelling of 816350297 in words is "eight hundred sixteen million, three hundred fifty thousand, two hundred ninety-seven".