36197971 has 2 divisors, whose sum is σ = 36197972. Its totient is φ = 36197970.

The previous prime is 36197969. The next prime is 36197989. The reversal of 36197971 is 17979163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36197971 - 2¹ = 36197969 is a prime.

Together with 36197969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36197671) 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, 18098985 + 18098986.

It is an arithmetic number, because the mean of its divisors is an integer number (18098986).

Almost surely, 2^36197971 is an apocalyptic number.

36197971 is a deficient number, since it is larger than the sum of its proper divisors (1).

36197971 is an equidigital number, since it uses as much as digits as its factorization.

36197971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442, while the sum is 43.

The square root of 36197971 is about 6016.4749646284. The cubic root of 36197971 is about 330.7968834434.

The spelling of 36197971 in words is "thirty-six million, one hundred ninety-seven thousand, nine hundred seventy-one".