36049861 has 2 divisors, whose sum is σ = 36049862. Its totient is φ = 36049860.

The previous prime is 36049847. The next prime is 36049883. The reversal of 36049861 is 16894063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 5909761 = 5490^2 + 2431^2 .

It is an emirp because it is prime and its reverse (16894063) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36049861 - 2⁷ = 36049733 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36049861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36049801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18024930 + 18024931.

It is an arithmetic number, because the mean of its divisors is an integer number (18024931).

Almost surely, 2^36049861 is an apocalyptic number.

It is an amenable number.

36049861 is a deficient number, since it is larger than the sum of its proper divisors (1).

36049861 is an equidigital number, since it uses as much as digits as its factorization.

36049861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 36049861 is about 6004.1536456024. The cubic root of 36049861 is about 330.3450965967.

The spelling of 36049861 in words is "thirty-six million, forty-nine thousand, eight hundred sixty-one".