36564646 has 4 divisors (see below), whose sum is σ = 54846972. Its totient is φ = 18282322.

The previous prime is 36564643. The next prime is 36564667. The reversal of 36564646 is 64646563.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 36564599 and 36564608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36564643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9141160 + ... + 9141163.

It is an arithmetic number, because the mean of its divisors is an integer number (13711743).

Almost surely, 2^36564646 is an apocalyptic number.

36564646 is a deficient number, since it is larger than the sum of its proper divisors (18282326).

36564646 is a wasteful number, since it uses less digits than its factorization.

36564646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18282325.

The product of its digits is 311040, while the sum is 40.

The square root of 36564646 is about 6046.8707609804. The cubic root of 36564646 is about 331.9100920236.

The spelling of 36564646 in words is "thirty-six million, five hundred sixty-four thousand, six hundred forty-six".