874821720 has 128 divisors (see below), whose sum is σ = 2670796800. Its totient is φ = 229211136.

The previous prime is 874821709. The next prime is 874821737. The reversal of 874821720 is 27128478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2087671 + ... + 2088089.

It is an arithmetic number, because the mean of its divisors is an integer number (20865600).

Almost surely, 2^874821720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 874821720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335398400).

874821720 is an abundant number, since it is smaller than the sum of its proper divisors (1795975080).

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

874821720 is a wasteful number, since it uses less digits than its factorization.

874821720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 874821720 is about 29577.3852799736. The cubic root of 874821720 is about 956.4006274746.

The spelling of 874821720 in words is "eight hundred seventy-four million, eight hundred twenty-one thousand, seven hundred twenty".