1000625 has 10 divisors (see below), whose sum is σ = 1251162. Its totient is φ = 800000.

The previous prime is 1000621. The next prime is 1000639. The reversal of 1000625 is 5260001.

1000625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 92416 + 908209 = 304^2 + 953^2 .

It is not a de Polignac number, because 1000625 - 2² = 1000621 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 176 + ... + 1425.

2^1000625 is an apocalyptic number.

It is an amenable number.

1000625 is a deficient number, since it is larger than the sum of its proper divisors (250537).

1000625 is an frugal number, since it uses more digits than its factorization.

1000625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1000625 is about 1000.3124511871. The cubic root of 1000625 is about 100.0208289946.

Adding to 1000625 its reverse (5260001), we get a palindrome (6260626).

The spelling of 1000625 in words is "one million, six hundred twenty-five", and thus it is an aban number.