973435649 has 2 divisors, whose sum is σ = 973435650. Its totient is φ = 973435648.

The previous prime is 973435633. The next prime is 973435651. The reversal of 973435649 is 946534379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967521025 + 5914624 = 31105^2 + 2432^2 .

It is a cyclic number.

It is not a de Polignac number, because 973435649 - 2⁴ = 973435633 is a prime.

Together with 973435651, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 973435597 and 973435606.

It is not a weakly prime, because it can be changed into another prime (973435679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486717824 + 486717825.

It is an arithmetic number, because the mean of its divisors is an integer number (486717825).

Almost surely, 2^973435649 is an apocalyptic number.

It is an amenable number.

973435649 is a deficient number, since it is larger than the sum of its proper divisors (1).

973435649 is an equidigital number, since it uses as much as digits as its factorization.

973435649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 50.

The square root of 973435649 is about 31199.9302723580. The cubic root of 973435649 is about 991.0656311084.

The spelling of 973435649 in words is "nine hundred seventy-three million, four hundred thirty-five thousand, six hundred forty-nine".