32561969 has 8 divisors (see below), whose sum is σ = 35646912. Its totient is φ = 29497840.

The previous prime is 32561939. The next prime is 32561989. The reversal of 32561969 is 96916523.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32561969 is a prime.

It is a super-2 number, since 2×32561969² = 2120563650313922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32561909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829 + ... + 8274.

It is an arithmetic number, because the mean of its divisors is an integer number (4455864).

Almost surely, 2^32561969 is an apocalyptic number.

It is an amenable number.

32561969 is a deficient number, since it is larger than the sum of its proper divisors (3084943).

32561969 is a wasteful number, since it uses less digits than its factorization.

32561969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407.

The product of its digits is 87480, while the sum is 41.

The square root of 32561969 is about 5706.3095780022. The cubic root of 32561969 is about 319.3279156056.

It can be divided in two parts, 3256 and 1969, that added together give a palindrome (5225).

The spelling of 32561969 in words is "thirty-two million, five hundred sixty-one thousand, nine hundred sixty-nine".