32736561 has 32 divisors (see below), whose sum is σ = 51746688. Its totient is φ = 18147840.

The previous prime is 32736559. The next prime is 32736569. The reversal of 32736561 is 16563723.

It is not a de Polignac number, because 32736561 - 2¹ = 32736559 is a prime.

It is a super-2 number, since 2×32736561² = 2143364852213442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (32736569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58495 + ... + 59051.

It is an arithmetic number, because the mean of its divisors is an integer number (1617084).

Almost surely, 2^32736561 is an apocalyptic number.

It is an amenable number.

32736561 is a deficient number, since it is larger than the sum of its proper divisors (19010127).

32736561 is a wasteful number, since it uses less digits than its factorization.

32736561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its digits is 22680, while the sum is 33.

The square root of 32736561 is about 5721.5872797677. The cubic root of 32736561 is about 319.8976267578.

The spelling of 32736561 in words is "thirty-two million, seven hundred thirty-six thousand, five hundred sixty-one".