36720403 has 4 divisors (see below), whose sum is σ = 36732960. Its totient is φ = 36707848.

The previous prime is 36720401. The next prime is 36720413. The reversal of 36720403 is 30402763.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 36720403 - 2¹ = 36720401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36720401) 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, 678 + ... + 8596.

It is an arithmetic number, because the mean of its divisors is an integer number (9183240).

Almost surely, 2^36720403 is an apocalyptic number.

36720403 is a deficient number, since it is larger than the sum of its proper divisors (12557).

36720403 is an equidigital number, since it uses as much as digits as its factorization.

36720403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 36720403 is about 6059.7362153810. The cubic root of 36720403 is about 332.3807113498.

The spelling of 36720403 in words is "thirty-six million, seven hundred twenty thousand, four hundred three".