6870625 has 10 divisors (see below), whose sum is σ = 8586314. Its totient is φ = 5496000.

The previous prime is 6870559. The next prime is 6870653. The reversal of 6870625 is 5260786.

It can be written as a sum of positive squares in 5 ways, for example, as 3936256 + 2934369 = 1984^2 + 1713^2 .

It is not a de Polignac number, because 6870625 - 2¹³ = 6862433 is a prime.

It is a Duffinian number.

6870625 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4872 + ... + 6121.

Almost surely, 2^6870625 is an apocalyptic number.

It is an amenable number.

6870625 is a deficient number, since it is larger than the sum of its proper divisors (1715689).

6870625 is an equidigital number, since it uses as much as digits as its factorization.

6870625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11013 (or 10998 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 6870625 is about 2621.1877078912. The cubic root of 6870625 is about 190.1072801350.

The spelling of 6870625 in words is "six million, eight hundred seventy thousand, six hundred twenty-five".