823198095 has 12 divisors (see below), whose sum is σ = 1426876776. Its totient is φ = 439038960.

The previous prime is 823198049. The next prime is 823198097. The reversal of 823198095 is 590891328.

It is a happy number.

It is not a de Polignac number, because 823198095 - 2²² = 819003791 is a prime.

It is a super-2 number, since 2×823198095² = 1355310207223258050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 18293291 = 823198095 / (8 + 2 + 3 + 1 + 9 + 8 + 0 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 823198095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823198097) 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 11 ways as a sum of consecutive naturals, for example, 9146601 + ... + 9146690.

It is an arithmetic number, because the mean of its divisors is an integer number (118906398).

Almost surely, 2^823198095 is an apocalyptic number.

823198095 is a deficient number, since it is larger than the sum of its proper divisors (603678681).

823198095 is a wasteful number, since it uses less digits than its factorization.

823198095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18293302 (or 18293299 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 823198095 is about 28691.4289466384. The cubic root of 823198095 is about 937.2054071724.

The spelling of 823198095 in words is "eight hundred twenty-three million, one hundred ninety-eight thousand, ninety-five".