9940613 has 2 divisors, whose sum is σ = 9940614. Its totient is φ = 9940612.

The previous prime is 9940607. The next prime is 9940643. The reversal of 9940613 is 3160499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5750404 + 4190209 = 2398^2 + 2047^2 .

It is a cyclic number.

It is not a de Polignac number, because 9940613 - 2²² = 5746309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9940613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9940603) by changing a digit.

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 as a sum of consecutive naturals, namely, 4970306 + 4970307.

It is an arithmetic number, because the mean of its divisors is an integer number (4970307).

Almost surely, 2^9940613 is an apocalyptic number.

It is an amenable number.

9940613 is a deficient number, since it is larger than the sum of its proper divisors (1).

9940613 is an equidigital number, since it uses as much as digits as its factorization.

9940613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 9940613 is about 3152.8737684849. The cubic root of 9940613 is about 215.0161372420.

The spelling of 9940613 in words is "nine million, nine hundred forty thousand, six hundred thirteen".