671025 has 24 divisors (see below), whose sum is σ = 1160640. Its totient is φ = 341440.

The previous prime is 671017. The next prime is 671029. The reversal of 671025 is 520176.

671025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671025 - 2³ = 671017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 670992 and 671010.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 671025.

It is not an unprimeable number, because it can be changed into a prime (671029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1531 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (48360).

2⁶⁷¹⁰²⁵ is an apocalyptic number.

It is an amenable number.

671025 is a deficient number, since it is larger than the sum of its proper divisors (489615).

671025 is a wasteful number, since it uses less digits than its factorization.

671025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 671025 is about 819.1611563056. The cubic root of 671025 is about 87.5480008737.

The spelling of 671025 in words is "six hundred seventy-one thousand, twenty-five".