816097 has 4 divisors (see below), whose sum is σ = 835120. Its totient is φ = 797076.

The previous prime is 816091. The next prime is 816103. The reversal of 816097 is 790618.

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, and also an emirpimes, since its reverse is a distinct semiprime: 790618 = 2 ⋅395309.

It is an interprime number because it is at equal distance from previous prime (816091) and next prime (816103).

It is a cyclic number.

It is not a de Polignac number, because 816097 - 2¹¹ = 814049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816091) 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, 9447 + ... + 9532.

It is an arithmetic number, because the mean of its divisors is an integer number (208780).

2⁸¹⁶⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

816097 is a deficient number, since it is larger than the sum of its proper divisors (19023).

816097 is a wasteful number, since it uses less digits than its factorization.

816097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19022.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 816097 is about 903.3808720578. The cubic root of 816097 is about 93.4502771646.

The spelling of 816097 in words is "eight hundred sixteen thousand, ninety-seven".