9940625 has 12 divisors (see below), whose sum is σ = 12428892. Its totient is φ = 7950000.

The previous prime is 9940613. The next prime is 9940643. The reversal of 9940625 is 5260499.

It can be written as a sum of positive squares in 6 ways, for example, as 9634816 + 305809 = 3104^2 + 553^2 .

It is not a de Polignac number, because 9940625 - 2⁶ = 9940561 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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1535 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (1035741).

Almost surely, 2^9940625 is an apocalyptic number.

It is an amenable number.

9940625 is a deficient number, since it is larger than the sum of its proper divisors (2488267).

9940625 is an frugal number, since it uses more digits than its factorization.

9940625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206 (or 3186 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 9940625 is about 3152.8756715101. The cubic root of 9940625 is about 215.0162237622.

The spelling of 9940625 in words is "nine million, nine hundred forty thousand, six hundred twenty-five".