961244437 has 2 divisors, whose sum is σ = 961244438. Its totient is φ = 961244436.

The previous prime is 961244381. The next prime is 961244441. The reversal of 961244437 is 734442169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 947039076 + 14205361 = 30774^2 + 3769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961244437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 961244437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961245437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480622218 + 480622219.

It is an arithmetic number, because the mean of its divisors is an integer number (480622219).

Almost surely, 2^961244437 is an apocalyptic number.

It is an amenable number.

961244437 is a deficient number, since it is larger than the sum of its proper divisors (1).

961244437 is an equidigital number, since it uses as much as digits as its factorization.

961244437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 961244437 is about 31003.9422815874. The cubic root of 961244437 is about 986.9109020081.

The spelling of 961244437 in words is "nine hundred sixty-one million, two hundred forty-four thousand, four hundred thirty-seven".