32730621 has 32 divisors (see below), whose sum is σ = 54905856. Its totient is φ = 16988400.

The previous prime is 32730617. The next prime is 32730623. The reversal of 32730621 is 12603723.

It is not a de Polignac number, because 32730621 - 2² = 32730617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32730591 and 32730600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32730623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27366 + ... + 28536.

It is an arithmetic number, because the mean of its divisors is an integer number (1715808).

Almost surely, 2^32730621 is an apocalyptic number.

It is an amenable number.

32730621 is a deficient number, since it is larger than the sum of its proper divisors (22175235).

32730621 is a wasteful number, since it uses less digits than its factorization.

32730621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 32730621 is about 5721.0681694942. The cubic root of 32730621 is about 319.8782772723.

The spelling of 32730621 in words is "thirty-two million, seven hundred thirty thousand, six hundred twenty-one".