36623521 has 8 divisors (see below), whose sum is σ = 41690304. Its totient is φ = 31846320.

The previous prime is 36623497. The next prime is 36623527. The reversal of 36623521 is 12532663.

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

It is not a de Polignac number, because 36623521 - 2¹³ = 36615329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36623521.

It is not an unprimeable number, because it can be changed into a prime (36623527) 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, 72126 + ... + 72631.

It is an arithmetic number, because the mean of its divisors is an integer number (5211288).

Almost surely, 2^36623521 is an apocalyptic number.

It is an amenable number.

36623521 is a deficient number, since it is larger than the sum of its proper divisors (5066783).

36623521 is a wasteful number, since it uses less digits than its factorization.

36623521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144791.

The product of its digits is 6480, while the sum is 28.

The square root of 36623521 is about 6051.7370233678. The cubic root of 36623521 is about 332.0881394912.

The spelling of 36623521 in words is "thirty-six million, six hundred twenty-three thousand, five hundred twenty-one".