961930237 has 2 divisors, whose sum is σ = 961930238. Its totient is φ = 961930236.

The previous prime is 961930213. The next prime is 961930259. The reversal of 961930237 is 732039169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 836019396 + 125910841 = 28914^2 + 11221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961930237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 961930237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961930267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480965118 + 480965119.

It is an arithmetic number, because the mean of its divisors is an integer number (480965119).

Almost surely, 2^961930237 is an apocalyptic number.

It is an amenable number.

961930237 is a deficient number, since it is larger than the sum of its proper divisors (1).

961930237 is an equidigital number, since it uses as much as digits as its factorization.

961930237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 961930237 is about 31015.0001934548. Note that the first 3 decimals coincide. The cubic root of 961930237 is about 987.1455501282.

The spelling of 961930237 in words is "nine hundred sixty-one million, nine hundred thirty thousand, two hundred thirty-seven".