961070813 has 2 divisors, whose sum is σ = 961070814. Its totient is φ = 961070812.

The previous prime is 961070807. The next prime is 961070827. The reversal of 961070813 is 318070169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590392804 + 370678009 = 24298^2 + 19253^2 .

It is a cyclic number.

It is not a de Polignac number, because 961070813 - 2⁴ = 961070797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961070833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480535406 + 480535407.

It is an arithmetic number, because the mean of its divisors is an integer number (480535407).

Almost surely, 2^961070813 is an apocalyptic number.

It is an amenable number.

961070813 is a deficient number, since it is larger than the sum of its proper divisors (1).

961070813 is an equidigital number, since it uses as much as digits as its factorization.

961070813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 961070813 is about 31001.1421241218. The cubic root of 961070813 is about 986.8514784353.

The spelling of 961070813 in words is "nine hundred sixty-one million, seventy thousand, eight hundred thirteen".