964821449 has 2 divisors, whose sum is σ = 964821450. Its totient is φ = 964821448.

The previous prime is 964821443. The next prime is 964821467. The reversal of 964821449 is 944128469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669153424 + 295668025 = 25868^2 + 17195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-964821449 is a prime.

It is not a weakly prime, because it can be changed into another prime (964821443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482410724 + 482410725.

It is an arithmetic number, because the mean of its divisors is an integer number (482410725).

Almost surely, 2^964821449 is an apocalyptic number.

It is an amenable number.

964821449 is a deficient number, since it is larger than the sum of its proper divisors (1).

964821449 is an equidigital number, since it uses as much as digits as its factorization.

964821449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 964821449 is about 31061.5751210398. The cubic root of 964821449 is about 988.1335609378.

The spelling of 964821449 in words is "nine hundred sixty-four million, eight hundred twenty-one thousand, four hundred forty-nine".