671625000 has 224 divisors, whose sum is σ = 2343720000. Its totient is φ = 178200000.

The previous prime is 671624981. The next prime is 671625029. The reversal of 671625000 is 526176.

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

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3374901 + ... + 3375099.

Almost surely, 2^671625000 is an apocalyptic number.

671625000 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 671625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1171860000).

671625000 is an abundant number, since it is smaller than the sum of its proper divisors (1672095000).

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

671625000 is an equidigital number, since it uses as much as digits as its factorization.

671625000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 209 counting only the distinct ones).

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

The square root of 671625000 is about 25915.7288147565. The cubic root of 671625000 is about 875.7408691221.

The spelling of 671625000 in words is "six hundred seventy-one million, six hundred twenty-five thousand".