961991753 has 2 divisors, whose sum is σ = 961991754. Its totient is φ = 961991752.

The previous prime is 961991707. The next prime is 961991759. The reversal of 961991753 is 357199169.

961991753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 866890249 + 95101504 = 29443^2 + 9752^2 .

It is an emirp because it is prime and its reverse (357199169) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 961991753 - 2⁶ = 961991689 is a prime.

It is not a weakly prime, because it can be changed into another prime (961991759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480995876 + 480995877.

It is an arithmetic number, because the mean of its divisors is an integer number (480995877).

Almost surely, 2^961991753 is an apocalyptic number.

It is an amenable number.

961991753 is a deficient number, since it is larger than the sum of its proper divisors (1).

961991753 is an equidigital number, since it uses as much as digits as its factorization.

961991753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 50.

The square root of 961991753 is about 31015.9918912809. The cubic root of 961991753 is about 987.1665925243.

The spelling of 961991753 in words is "nine hundred sixty-one million, nine hundred ninety-one thousand, seven hundred fifty-three".