953649649 has 2 divisors, whose sum is σ = 953649650. Its totient is φ = 953649648.

The previous prime is 953649647. The next prime is 953649679. The reversal of 953649649 is 946946359.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783608049 + 170041600 = 27993^2 + 13040^2 .

It is a cyclic number.

It is not a de Polignac number, because 953649649 - 2¹ = 953649647 is a prime.

Together with 953649647, 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 953649649.

It is not a weakly prime, because it can be changed into another prime (953649647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476824824 + 476824825.

It is an arithmetic number, because the mean of its divisors is an integer number (476824825).

Almost surely, 2^953649649 is an apocalyptic number.

It is an amenable number.

953649649 is a deficient number, since it is larger than the sum of its proper divisors (1).

953649649 is an equidigital number, since it uses as much as digits as its factorization.

953649649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 55.

The square root of 953649649 is about 30881.2183859381. The cubic root of 953649649 is about 984.3048335225.

The spelling of 953649649 in words is "nine hundred fifty-three million, six hundred forty-nine thousand, six hundred forty-nine".