823048891 has 8 divisors (see below), whose sum is σ = 942976224. Its totient is φ = 703708800.

The previous prime is 823048873. The next prime is 823048901. The reversal of 823048891 is 198840328.

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 823048891 - 2¹⁹ = 822524603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823048871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143800 + ... + 149413.

It is an arithmetic number, because the mean of its divisors is an integer number (117872028).

Almost surely, 2^823048891 is an apocalyptic number.

823048891 is a deficient number, since it is larger than the sum of its proper divisors (119927333).

823048891 is a wasteful number, since it uses less digits than its factorization.

823048891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293621.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 823048891 is about 28688.8286794703. The cubic root of 823048891 is about 937.1487811729.

It can be divided in two parts, 8230 and 48891, that added together give a square (57121 = 239²).

The spelling of 823048891 in words is "eight hundred twenty-three million, forty-eight thousand, eight hundred ninety-one".