671025600 has 504 divisors, whose sum is σ = 2854482480. Its totient is φ = 152893440.

The previous prime is 671025571. The next prime is 671025601. The reversal of 671025600 is 6520176.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671025601) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2116642 + ... + 2116958.

Almost surely, 2^671025600 is an apocalyptic number.

671025600 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 671025600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427241240).

671025600 is an abundant number, since it is smaller than the sum of its proper divisors (2183456880).

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

671025600 is a wasteful number, since it uses less digits than its factorization.

671025600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 671025600 is about 25904.1618277836. The cubic root of 671025600 is about 875.4802696749.

Adding to 671025600 its reverse (6520176), we get a palindrome (677545776).

The spelling of 671025600 in words is "six hundred seventy-one million, twenty-five thousand, six hundred".