36505709 has 8 divisors (see below), whose sum is σ = 36996960. Its totient is φ = 36018000.

The previous prime is 36505697. The next prime is 36505723. The reversal of 36505709 is 90750563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36505709 - 2⁸ = 36505453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36505789) 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 7 ways as a sum of consecutive naturals, for example, 24434 + ... + 25884.

It is an arithmetic number, because the mean of its divisors is an integer number (4624620).

Almost surely, 2^36505709 is an apocalyptic number.

It is an amenable number.

36505709 is a deficient number, since it is larger than the sum of its proper divisors (491251).

36505709 is a wasteful number, since it uses less digits than its factorization.

36505709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 36505709 is about 6041.9954485253. The cubic root of 36505709 is about 331.7316655294.

The spelling of 36505709 in words is "thirty-six million, five hundred five thousand, seven hundred nine".