36571729 has 2 divisors, whose sum is σ = 36571730. Its totient is φ = 36571728.

The previous prime is 36571727. The next prime is 36571753. The reversal of 36571729 is 92717563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28998225 + 7573504 = 5385^2 + 2752^2 .

It is an emirp because it is prime and its reverse (92717563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36571729 - 2¹ = 36571727 is a prime.

Together with 36571727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 36571691 and 36571700.

It is not a weakly prime, because it can be changed into another prime (36571727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18285864 + 18285865.

It is an arithmetic number, because the mean of its divisors is an integer number (18285865).

Almost surely, 2^36571729 is an apocalyptic number.

It is an amenable number.

36571729 is a deficient number, since it is larger than the sum of its proper divisors (1).

36571729 is an equidigital number, since it uses as much as digits as its factorization.

36571729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 40.

The square root of 36571729 is about 6047.4564074493. The cubic root of 36571729 is about 331.9315222634.

The spelling of 36571729 in words is "thirty-six million, five hundred seventy-one thousand, seven hundred twenty-nine".