36189739 has 2 divisors, whose sum is σ = 36189740. Its totient is φ = 36189738.

The previous prime is 36189731. The next prime is 36189761. The reversal of 36189739 is 93798163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36189739 - 2³ = 36189731 is a prime.

It is not a weakly prime, because it can be changed into another prime (36189731) 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, 18094869 + 18094870.

It is an arithmetic number, because the mean of its divisors is an integer number (18094870).

Almost surely, 2^36189739 is an apocalyptic number.

36189739 is a deficient number, since it is larger than the sum of its proper divisors (1).

36189739 is an equidigital number, since it uses as much as digits as its factorization.

36189739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 36189739 is about 6015.7908042085. The cubic root of 36189739 is about 330.7718053675.

It can be divided in two parts, 361 and 89739, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 36189739 in words is "thirty-six million, one hundred eighty-nine thousand, seven hundred thirty-nine".