36720805 has 16 divisors (see below), whose sum is σ = 48573504. Its totient is φ = 26426880.

The previous prime is 36720793. The next prime is 36720821. The reversal of 36720805 is 50802763.

It is not a de Polignac number, because 36720805 - 2¹¹ = 36718757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1894 + ... + 8776.

It is an arithmetic number, because the mean of its divisors is an integer number (3035844).

Almost surely, 2^36720805 is an apocalyptic number.

It is an amenable number.

36720805 is a deficient number, since it is larger than the sum of its proper divisors (11852699).

36720805 is a wasteful number, since it uses less digits than its factorization.

36720805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 36720805 is about 6059.7693850509. The cubic root of 36720805 is about 332.3819242682.

The spelling of 36720805 in words is "thirty-six million, seven hundred twenty thousand, eight hundred five".