961387369 has 2 divisors, whose sum is σ = 961387370. Its totient is φ = 961387368.

The previous prime is 961387363. The next prime is 961387411. The reversal of 961387369 is 963783169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 862185769 + 99201600 = 29363^2 + 9960^2 .

It is a cyclic number.

It is not a de Polignac number, because 961387369 - 2⁵ = 961387337 is a prime.

It is a super-2 number, since 2×961387369² = 1848531346545484322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (961387363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480693684 + 480693685.

It is an arithmetic number, because the mean of its divisors is an integer number (480693685).

Almost surely, 2^961387369 is an apocalyptic number.

It is an amenable number.

961387369 is a deficient number, since it is larger than the sum of its proper divisors (1).

961387369 is an equidigital number, since it uses as much as digits as its factorization.

961387369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 961387369 is about 31006.2472576092. The cubic root of 961387369 is about 986.9598157400.

The spelling of 961387369 in words is "nine hundred sixty-one million, three hundred eighty-seven thousand, three hundred sixty-nine".