16036649 has 2 divisors, whose sum is σ = 16036650. Its totient is φ = 16036648.

The previous prime is 16036639. The next prime is 16036673. The reversal of 16036649 is 94663061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15840400 + 196249 = 3980^2 + 443^2 .

It is an emirp because it is prime and its reverse (94663061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16036649 - 2¹⁶ = 15971113 is a prime.

It is a super-2 number, since 2×16036649² = 514348222298402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16036639) 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, 8018324 + 8018325.

It is an arithmetic number, because the mean of its divisors is an integer number (8018325).

Almost surely, 2^16036649 is an apocalyptic number.

It is an amenable number.

16036649 is a deficient number, since it is larger than the sum of its proper divisors (1).

16036649 is an equidigital number, since it uses as much as digits as its factorization.

16036649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 16036649 is about 4004.5785046619. The cubic root of 16036649 is about 252.1764584619.

The spelling of 16036649 in words is "sixteen million, thirty-six thousand, six hundred forty-nine".