968832649 has 2 divisors, whose sum is σ = 968832650. Its totient is φ = 968832648.

The previous prime is 968832647. The next prime is 968832653. The reversal of 968832649 is 946238869.

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., 965966400 + 2866249 = 31080^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 968832649 - 2¹ = 968832647 is a prime.

Together with 968832647, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 968832649.

It is not a weakly prime, because it can be changed into another prime (968832647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484416324 + 484416325.

It is an arithmetic number, because the mean of its divisors is an integer number (484416325).

Almost surely, 2^968832649 is an apocalyptic number.

It is an amenable number.

968832649 is a deficient number, since it is larger than the sum of its proper divisors (1).

968832649 is an equidigital number, since it uses as much as digits as its factorization.

968832649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 55.

The square root of 968832649 is about 31126.0766721410. The cubic root of 968832649 is about 989.5010406121.

The spelling of 968832649 in words is "nine hundred sixty-eight million, eight hundred thirty-two thousand, six hundred forty-nine".