963673309 has 2 divisors, whose sum is σ = 963673310. Its totient is φ = 963673308.

The previous prime is 963673267. The next prime is 963673349. The reversal of 963673309 is 903376369.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 949256100 + 14417209 = 30810^2 + 3797^2 .

It is a cyclic number.

It is not a de Polignac number, because 963673309 - 2¹³ = 963665117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (963673349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481836654 + 481836655.

It is an arithmetic number, because the mean of its divisors is an integer number (481836655).

Almost surely, 2^963673309 is an apocalyptic number.

It is an amenable number.

963673309 is a deficient number, since it is larger than the sum of its proper divisors (1).

963673309 is an equidigital number, since it uses as much as digits as its factorization.

963673309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 46.

The square root of 963673309 is about 31043.0879424068. The cubic root of 963673309 is about 987.7414448659.

It can be divided in two parts, 96 and 3673309, that added together give a triangular number (3673405 = T₂₇₁₀).

The spelling of 963673309 in words is "nine hundred sixty-three million, six hundred seventy-three thousand, three hundred nine".