10216649 has 2 divisors, whose sum is σ = 10216650. Its totient is φ = 10216648.

The previous prime is 10216637. The next prime is 10216663. The reversal of 10216649 is 94661201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9966649 + 250000 = 3157^2 + 500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10216649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10216849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108324 + 5108325.

It is an arithmetic number, because the mean of its divisors is an integer number (5108325).

Almost surely, 2^10216649 is an apocalyptic number.

It is an amenable number.

10216649 is a deficient number, since it is larger than the sum of its proper divisors (1).

10216649 is an equidigital number, since it uses as much as digits as its factorization.

10216649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 10216649 is about 3196.3493238381. The cubic root of 10216649 is about 216.9882202472.

The spelling of 10216649 in words is "ten million, two hundred sixteen thousand, six hundred forty-nine".