670487225 has 18 divisors (see below), whose sum is σ = 883196634. Its totient is φ = 504832000.

The previous prime is 670487201. The next prime is 670487239. The reversal of 670487225 is 522784076.

It can be written as a sum of positive squares in 9 ways, for example, as 6497401 + 663989824 = 2549^2 + 25768^2 .

It is not a de Polignac number, because 670487225 - 2⁶ = 670487161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39176 + ... + 53625.

Almost surely, 2^670487225 is an apocalyptic number.

It is an amenable number.

670487225 is a deficient number, since it is larger than the sum of its proper divisors (212709409).

670487225 is a wasteful number, since it uses less digits than its factorization.

670487225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92845 (or 92823 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 670487225 is about 25893.7680726464. The cubic root of 670487225 is about 875.2460695688.

The spelling of 670487225 in words is "six hundred seventy million, four hundred eighty-seven thousand, two hundred twenty-five".