36981803 has 2 divisors, whose sum is σ = 36981804. Its totient is φ = 36981802.

The previous prime is 36981797. The next prime is 36981827. The reversal of 36981803 is 30818963.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36981803 - 2⁴ = 36981787 is a prime.

It is not a weakly prime, because it can be changed into another prime (36983803) 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, 18490901 + 18490902.

It is an arithmetic number, because the mean of its divisors is an integer number (18490902).

Almost surely, 2^36981803 is an apocalyptic number.

36981803 is a deficient number, since it is larger than the sum of its proper divisors (1).

36981803 is an equidigital number, since it uses as much as digits as its factorization.

36981803 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 38.

The square root of 36981803 is about 6081.2665621563. The cubic root of 36981803 is about 333.1675487823.

The spelling of 36981803 in words is "thirty-six million, nine hundred eighty-one thousand, eight hundred three".