958343861 has 2 divisors, whose sum is σ = 958343862. Its totient is φ = 958343860.

The previous prime is 958343843. The next prime is 958343887. The reversal of 958343861 is 168343859.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500640625 + 457703236 = 22375^2 + 21394^2 .

It is a cyclic number.

It is not a de Polignac number, because 958343861 - 2¹⁴ = 958327477 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (958343821) 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, 479171930 + 479171931.

It is an arithmetic number, because the mean of its divisors is an integer number (479171931).

Almost surely, 2^958343861 is an apocalyptic number.

It is an amenable number.

958343861 is a deficient number, since it is larger than the sum of its proper divisors (1).

958343861 is an equidigital number, since it uses as much as digits as its factorization.

958343861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 958343861 is about 30957.1294050337. The cubic root of 958343861 is about 985.9172268192.

The spelling of 958343861 in words is "nine hundred fifty-eight million, three hundred forty-three thousand, eight hundred sixty-one".