36391657 has 2 divisors, whose sum is σ = 36391658. Its totient is φ = 36391656.

The previous prime is 36391639. The next prime is 36391697. The reversal of 36391657 is 75619363.

36391657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (36391697) can be obtained adding 36391657 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30958096 + 5433561 = 5564^2 + 2331^2 .

It is an emirp because it is prime and its reverse (75619363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36391657 - 2¹⁹ = 35867369 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36391627) 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, 18195828 + 18195829.

It is an arithmetic number, because the mean of its divisors is an integer number (18195829).

Almost surely, 2^36391657 is an apocalyptic number.

It is an amenable number.

36391657 is a deficient number, since it is larger than the sum of its proper divisors (1).

36391657 is an equidigital number, since it uses as much as digits as its factorization.

36391657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 40.

The square root of 36391657 is about 6032.5497925836. The cubic root of 36391657 is about 331.3858371572.

The spelling of 36391657 in words is "thirty-six million, three hundred ninety-one thousand, six hundred fifty-seven".