36561072 has 20 divisors (see below), whose sum is σ = 94449560. Its totient is φ = 12187008.

The previous prime is 36561071. The next prime is 36561079. The reversal of 36561072 is 27016563.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (36561071) 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 3 ways as a sum of consecutive naturals, for example, 380797 + ... + 380892.

It is an arithmetic number, because the mean of its divisors is an integer number (4722478).

Almost surely, 2^36561072 is an apocalyptic number.

It is an amenable number.

36561072 is an abundant number, since it is smaller than the sum of its proper divisors (57888488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36561072 is a wasteful number, since it uses less digits than its factorization.

36561072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761700 (or 761694 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 36561072 is about 6046.5752290036. The cubic root of 36561072 is about 331.8992775215.

The spelling of 36561072 in words is "thirty-six million, five hundred sixty-one thousand, seventy-two".