36973591 has 2 divisors, whose sum is σ = 36973592. Its totient is φ = 36973590.

The previous prime is 36973577. The next prime is 36973597. The reversal of 36973591 is 19537963.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36973591 - 2¹³ = 36965399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36973597) 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, 18486795 + 18486796.

It is an arithmetic number, because the mean of its divisors is an integer number (18486796).

Almost surely, 2^36973591 is an apocalyptic number.

36973591 is a deficient number, since it is larger than the sum of its proper divisors (1).

36973591 is an equidigital number, since it uses as much as digits as its factorization.

36973591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 43.

The square root of 36973591 is about 6080.5913363751. The cubic root of 36973591 is about 333.1428864329.

The spelling of 36973591 in words is "thirty-six million, nine hundred seventy-three thousand, five hundred ninety-one".