36998861 has 2 divisors, whose sum is σ = 36998862. Its totient is φ = 36998860.

The previous prime is 36998839. The next prime is 36998887. The reversal of 36998861 is 16889963.

36998861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29052100 + 7946761 = 5390^2 + 2819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36998861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36998821) 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, 18499430 + 18499431.

It is an arithmetic number, because the mean of its divisors is an integer number (18499431).

Almost surely, 2^36998861 is an apocalyptic number.

It is an amenable number.

36998861 is a deficient number, since it is larger than the sum of its proper divisors (1).

36998861 is an equidigital number, since it uses as much as digits as its factorization.

36998861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The square root of 36998861 is about 6082.6689043544. The cubic root of 36998861 is about 333.2187658496.

The spelling of 36998861 in words is "thirty-six million, nine hundred ninety-eight thousand, eight hundred sixty-one".