873491724 has 72 divisors (see below), whose sum is σ = 2541940128. Its totient is φ = 247737600.

The previous prime is 873491711. The next prime is 873491737. The reversal of 873491724 is 427194378.

It is an interprime number because it is at equal distance from previous prime (873491711) and next prime (873491737).

It is a self number, because there is not a number n which added to its sum of digits gives 873491724.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 21874 + ... + 47174.

It is an arithmetic number, because the mean of its divisors is an integer number (35304724).

Almost surely, 2^873491724 is an apocalyptic number.

873491724 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873491724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270970064).

873491724 is an abundant number, since it is smaller than the sum of its proper divisors (1668448404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

873491724 is a wasteful number, since it uses less digits than its factorization.

873491724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25455 (or 25450 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 873491724 is about 29554.8934019394. The cubic root of 873491724 is about 955.9157080376.

The spelling of 873491724 in words is "eight hundred seventy-three million, four hundred ninety-one thousand, seven hundred twenty-four".