671300100 has 108 divisors (see below), whose sum is σ = 2111112276. Its totient is φ = 178421760.

The previous prime is 671300089. The next prime is 671300141. The reversal of 671300100 is 1003176.

It can be written as a sum of positive squares in 6 ways, for example, as 193265604 + 478034496 = 13902^2 + 21864^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 316644 + ... + 318756.

Almost surely, 2^671300100 is an apocalyptic number.

671300100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671300100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055556138).

671300100 is an abundant number, since it is smaller than the sum of its proper divisors (1439812176).

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

671300100 is a wasteful number, since it uses less digits than its factorization.

671300100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 671300100 is about 25909.4596624476. The cubic root of 671300100 is about 875.5996325188.

Adding to 671300100 its reverse (1003176), we get a palindrome (672303276).

The spelling of 671300100 in words is "six hundred seventy-one million, three hundred thousand, one hundred".