36609521 has 8 divisors (see below), whose sum is σ = 39473280. Its totient is φ = 33752592.

The previous prime is 36609499. The next prime is 36609533. The reversal of 36609521 is 12590663.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36609521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36609581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17510 + ... + 19488.

It is an arithmetic number, because the mean of its divisors is an integer number (4934160).

Almost surely, 2^36609521 is an apocalyptic number.

It is an amenable number.

36609521 is a deficient number, since it is larger than the sum of its proper divisors (2863759).

36609521 is a wasteful number, since it uses less digits than its factorization.

36609521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 36609521 is about 6050.5802201111. The cubic root of 36609521 is about 332.0458185421.

The spelling of 36609521 in words is "thirty-six million, six hundred nine thousand, five hundred twenty-one".