971234993 has 2 divisors, whose sum is σ = 971234994. Its totient is φ = 971234992.

The previous prime is 971234987. The next prime is 971235037. The reversal of 971234993 is 399432179.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964537249 + 6697744 = 31057^2 + 2588^2 .

It is a cyclic number.

It is not a de Polignac number, because 971234993 - 2⁴ = 971234977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (971234933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485617496 + 485617497.

It is an arithmetic number, because the mean of its divisors is an integer number (485617497).

Almost surely, 2^971234993 is an apocalyptic number.

It is an amenable number.

971234993 is a deficient number, since it is larger than the sum of its proper divisors (1).

971234993 is an equidigital number, since it uses as much as digits as its factorization.

971234993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The square root of 971234993 is about 31164.6433157834. The cubic root of 971234993 is about 990.3182301787.

It can be divided in two parts, 971 and 234993, that multiplied together give a triangular number (228178203 = T₂₁₃₆₂).

The spelling of 971234993 in words is "nine hundred seventy-one million, two hundred thirty-four thousand, nine hundred ninety-three".