879557472 has 144 divisors (see below), whose sum is σ = 2637638640. Its totient is φ = 277595136.

The previous prime is 879557453. The next prime is 879557473. The reversal of 879557472 is 274755978.

It is a happy number.

879557472 is a `hidden beast` number, since 87 + 9 + 557 + 4 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×879557472³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879557473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441663 + ... + 443649.

It is an arithmetic number, because the mean of its divisors is an integer number (18316935).

Almost surely, 2^879557472 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 879557472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318819320).

879557472 is an abundant number, since it is smaller than the sum of its proper divisors (1758081168).

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

879557472 is a wasteful number, since it uses less digits than its factorization.

879557472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 2074 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The square root of 879557472 is about 29657.3342025206. The cubic root of 879557472 is about 958.1233128545.

It can be divided in two parts, 87 and 9557472, that added together give a palindrome (9557559).

The spelling of 879557472 in words is "eight hundred seventy-nine million, five hundred fifty-seven thousand, four hundred seventy-two".