671041100 has 72 divisors (see below), whose sum is σ = 1528214688. Its totient is φ = 255270400.

The previous prime is 671041099. The next prime is 671041127. The reversal of 671041100 is 1140176.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 452360 + ... + 453840.

It is an arithmetic number, because the mean of its divisors is an integer number (21225204).

Almost surely, 2^671041100 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 671041100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764107344).

671041100 is an abundant number, since it is smaller than the sum of its proper divisors (857173588).

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

671041100 is a wasteful number, since it uses less digits than its factorization.

671041100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 671041100 is about 25904.4610057805. The cubic root of 671041100 is about 875.4870105204.

Adding to 671041100 its reverse (1140176), we get a palindrome (672181276).

The spelling of 671041100 in words is "six hundred seventy-one million, forty-one thousand, one hundred".