1336649 has 2 divisors, whose sum is σ = 1336650. Its totient is φ = 1336648.

The previous prime is 1336637. The next prime is 1336663. The reversal of 1336649 is 9466331.

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., 1281424 + 55225 = 1132^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336649 - 2⁸ = 1336393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1336619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668324 + 668325.

It is an arithmetic number, because the mean of its divisors is an integer number (668325).

2^1336649 is an apocalyptic number.

It is an amenable number.

1336649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336649 is an equidigital number, since it uses as much as digits as its factorization.

1336649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 1336649 is about 1156.1353726965. The cubic root of 1336649 is about 110.1554001930.

The spelling of 1336649 in words is "one million, three hundred thirty-six thousand, six hundred forty-nine".