961601 has 2 divisors, whose sum is σ = 961602. Its totient is φ = 961600.

The previous prime is 961567. The next prime is 961613. The reversal of 961601 is 106169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952576 + 9025 = 976^2 + 95^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961601 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 7.

It is not a weakly prime, because it can be changed into another prime (961661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480800 + 480801.

It is an arithmetic number, because the mean of its divisors is an integer number (480801).

2⁹⁶¹⁶⁰¹ is an apocalyptic number.

It is an amenable number.

961601 is a deficient number, since it is larger than the sum of its proper divisors (1).

961601 is an equidigital number, since it uses as much as digits as its factorization.

961601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 961601 is about 980.6125636560. The cubic root of 961601 is about 98.7032914820.

The spelling of 961601 in words is "nine hundred sixty-one thousand, six hundred one".