36721835 has 4 divisors (see below), whose sum is σ = 44066208. Its totient is φ = 29377464.

The previous prime is 36721799. The next prime is 36721837. The reversal of 36721835 is 53812763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53812763 = 37 ⋅1454399.

It is a cyclic number.

It is not a de Polignac number, because 36721835 - 2⁶ = 36721771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36721795 and 36721804.

It is not an unprimeable number, because it can be changed into a prime (36721837) 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 in 3 ways as a sum of consecutive naturals, for example, 3672179 + ... + 3672188.

It is an arithmetic number, because the mean of its divisors is an integer number (11016552).

Almost surely, 2^36721835 is an apocalyptic number.

36721835 is a deficient number, since it is larger than the sum of its proper divisors (7344373).

36721835 is an equidigital number, since it uses as much as digits as its factorization.

36721835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7344372.

The product of its digits is 30240, while the sum is 35.

The square root of 36721835 is about 6059.8543711875. The cubic root of 36721835 is about 332.3850319541.

The spelling of 36721835 in words is "thirty-six million, seven hundred twenty-one thousand, eight hundred thirty-five".