32628913 has 8 divisors (see below), whose sum is σ = 33180840. Its totient is φ = 32081280.

The previous prime is 32628859. The next prime is 32628917. The reversal of 32628913 is 31982623.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 954529 + 31674384 = 977^2 + 5628^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 32628913 - 2¹⁷ = 32497841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32628917) 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 7 ways as a sum of consecutive naturals, for example, 16603 + ... + 18463.

It is an arithmetic number, because the mean of its divisors is an integer number (4147605).

Almost surely, 2^32628913 is an apocalyptic number.

It is an amenable number.

32628913 is a deficient number, since it is larger than the sum of its proper divisors (551927).

32628913 is a wasteful number, since it uses less digits than its factorization.

32628913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147.

The product of its digits is 15552, while the sum is 34.

The square root of 32628913 is about 5712.1723538423. The cubic root of 32628913 is about 319.5466007329.

The spelling of 32628913 in words is "thirty-two million, six hundred twenty-eight thousand, nine hundred thirteen".