816097895 has 8 divisors (see below), whose sum is σ = 1000154304. Its totient is φ = 638987104.

The previous prime is 816097889. The next prime is 816097897. The reversal of 816097895 is 598790618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 816097895 - 2⁶ = 816097831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816097897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736144 + ... + 1736613.

It is an arithmetic number, because the mean of its divisors is an integer number (125019288).

Almost surely, 2^816097895 is an apocalyptic number.

816097895 is a deficient number, since it is larger than the sum of its proper divisors (184056409).

816097895 is a wasteful number, since it uses less digits than its factorization.

816097895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472809.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 816097895 is about 28567.4271680178. The cubic root of 816097895 is about 934.5031132634.

The spelling of 816097895 in words is "eight hundred sixteen million, ninety-seven thousand, eight hundred ninety-five".