36561646 has 8 divisors (see below), whose sum is σ = 59828184. Its totient is φ = 16618920.

The previous prime is 36561599. The next prime is 36561677. The reversal of 36561646 is 64616563.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830925 + ... + 830968.

It is an arithmetic number, because the mean of its divisors is an integer number (7478523).

Almost surely, 2^36561646 is an apocalyptic number.

36561646 is a deficient number, since it is larger than the sum of its proper divisors (23266538).

36561646 is a wasteful number, since it uses less digits than its factorization.

36561646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661906.

The product of its digits is 77760, while the sum is 37.

The square root of 36561646 is about 6046.6226937027. The cubic root of 36561646 is about 331.9010144252.

The spelling of 36561646 in words is "thirty-six million, five hundred sixty-one thousand, six hundred forty-six".