671434632 has 96 divisors (see below), whose sum is σ = 2017548000. Its totient is φ = 200002560.

The previous prime is 671434613. The next prime is 671434681. The reversal of 671434632 is 236434176.

It is a happy number.

671434632 is a `hidden beast` number, since 6 + 7 + 14 + 3 + 4 + 632 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39544 + ... + 53912.

It is an arithmetic number, because the mean of its divisors is an integer number (21016125).

Almost surely, 2^671434632 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 671434632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008774000).

671434632 is an abundant number, since it is smaller than the sum of its proper divisors (1346113368).

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

671434632 is a wasteful number, since it uses less digits than its factorization.

671434632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14451 (or 14444 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 671434632 is about 25912.0557270163. The cubic root of 671434632 is about 875.6581201717.

The spelling of 671434632 in words is "six hundred seventy-one million, four hundred thirty-four thousand, six hundred thirty-two".