671446925 has 12 divisors (see below), whose sum is σ = 832985376. Its totient is φ = 536905200.

The previous prime is 671446913. The next prime is 671446927. The reversal of 671446925 is 529644176.

It is not a de Polignac number, because 671446925 - 2⁸ = 671446669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671446927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62822 + ... + 72728.

It is an arithmetic number, because the mean of its divisors is an integer number (69415448).

Almost surely, 2^671446925 is an apocalyptic number.

It is an amenable number.

671446925 is a deficient number, since it is larger than the sum of its proper divisors (161538451).

671446925 is a wasteful number, since it uses less digits than its factorization.

671446925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628 (or 12623 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 671446925 is about 25912.2929321201. The cubic root of 671446925 is about 875.6634641516.

The spelling of 671446925 in words is "six hundred seventy-one million, four hundred forty-six thousand, nine hundred twenty-five".