36579921 has 32 divisors (see below), whose sum is σ = 59904000. Its totient is φ = 19792080.

The previous prime is 36579899. The next prime is 36579929. The reversal of 36579921 is 12997563.

It is not a de Polignac number, because 36579921 - 2⁹ = 36579409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36579929) 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 31 ways as a sum of consecutive naturals, for example, 18616 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (1872000).

Almost surely, 2^36579921 is an apocalyptic number.

It is an amenable number.

36579921 is a deficient number, since it is larger than the sum of its proper divisors (23324079).

36579921 is a wasteful number, since it uses less digits than its factorization.

36579921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914 (or 1900 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 36579921 is about 6048.1336790782. The cubic root of 36579921 is about 331.9563044298.

The spelling of 36579921 in words is "thirty-six million, five hundred seventy-nine thousand, nine hundred twenty-one".