961607893 has 2 divisors, whose sum is σ = 961607894. Its totient is φ = 961607892.

The previous prime is 961607831. The next prime is 961607923. The reversal of 961607893 is 398706169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512252689 + 449355204 = 22633^2 + 21198^2 .

It is an emirp because it is prime and its reverse (398706169) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961607893 is a prime.

It is a super-3 number, since 3×961607893³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961607093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480803946 + 480803947.

It is an arithmetic number, because the mean of its divisors is an integer number (480803947).

Almost surely, 2^961607893 is an apocalyptic number.

It is an amenable number.

961607893 is a deficient number, since it is larger than the sum of its proper divisors (1).

961607893 is an equidigital number, since it uses as much as digits as its factorization.

961607893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 961607893 is about 31009.8031757701. The cubic root of 961607893 is about 987.0352732486.

The spelling of 961607893 in words is "nine hundred sixty-one million, six hundred seven thousand, eight hundred ninety-three".