871432704 has 120 divisors (see below), whose sum is σ = 2527714332. Its totient is φ = 289013760.

The previous prime is 871432693. The next prime is 871432721. The reversal of 871432704 is 407234178.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 871430400 + 2304 = 29520^2 + 48^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294512 + ... + 1295184.

Almost surely, 2^871432704 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 871432704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263857166).

871432704 is an abundant number, since it is smaller than the sum of its proper divisors (1656281628).

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

871432704 is a wasteful number, since it uses less digits than its factorization.

871432704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 871432704 is about 29520.0390243644. The cubic root of 871432704 is about 955.1640130210.

The spelling of 871432704 in words is "eight hundred seventy-one million, four hundred thirty-two thousand, seven hundred four".