873848991 has 16 divisors (see below), whose sum is σ = 1178924544. Its totient is φ = 575697024.

The previous prime is 873848971. The next prime is 873849061. The reversal of 873848991 is 199848378.

873848991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 873848991 - 2¹⁴ = 873832607 is a prime.

It is a super-2 number, since 2×873848991² = 1527224118143436162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873848971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135850 + ... + 142136.

It is an arithmetic number, because the mean of its divisors is an integer number (73682784).

Almost surely, 2^873848991 is an apocalyptic number.

873848991 is a deficient number, since it is larger than the sum of its proper divisors (305075553).

873848991 is a wasteful number, since it uses less digits than its factorization.

873848991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830.

The product of its digits is 3483648, while the sum is 57.

The square root of 873848991 is about 29560.9369100507. The cubic root of 873848991 is about 956.0460166893.

The spelling of 873848991 in words is "eight hundred seventy-three million, eight hundred forty-eight thousand, nine hundred ninety-one".