36536321 has 4 divisors (see below), whose sum is σ = 37714944. Its totient is φ = 35357700.

The previous prime is 36536309. The next prime is 36536329. The reversal of 36536321 is 12363563.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12363563 = 2693 ⋅4591.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36536321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36536329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589265 + ... + 589326.

It is an arithmetic number, because the mean of its divisors is an integer number (9428736).

It is a Proth number, since it is equal to 1115 ⋅ 2¹⁵ + 1 and 1115 < 2¹⁵.

Almost surely, 2^36536321 is an apocalyptic number.

36536321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36536321 is a deficient number, since it is larger than the sum of its proper divisors (1178623).

36536321 is a wasteful number, since it uses less digits than its factorization.

36536321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178622.

The product of its digits is 9720, while the sum is 29.

The square root of 36536321 is about 6044.5281867157. The cubic root of 36536321 is about 331.8243645697.

Adding to 36536321 its reverse (12363563), we get a palindrome (48899884).

The spelling of 36536321 in words is "thirty-six million, five hundred thirty-six thousand, three hundred twenty-one".