961613 has 2 divisors, whose sum is σ = 961614. Its totient is φ = 961612.

The previous prime is 961601. The next prime is 961619. The reversal of 961613 is 316169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946729 + 14884 = 973^2 + 122^2 .

961613 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 961613 - 2⁶ = 961549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961619) by changing a digit.

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 as a sum of consecutive naturals, namely, 480806 + 480807.

It is an arithmetic number, because the mean of its divisors is an integer number (480807).

2⁹⁶¹⁶¹³ is an apocalyptic number.

It is an amenable number.

961613 is a deficient number, since it is larger than the sum of its proper divisors (1).

961613 is an equidigital number, since it uses as much as digits as its factorization.

961613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 961613 is about 980.6186822614. The cubic root of 961613 is about 98.7037020593.

The spelling of 961613 in words is "nine hundred sixty-one thousand, six hundred thirteen".