32649 has 4 divisors (see below), whose sum is σ = 43536. Its totient is φ = 21764.

The previous prime is 32647. The next prime is 32653. The reversal of 32649 is 94623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94623 = 3 ⋅31541.

It is a cyclic number.

It is not a de Polignac number, because 32649 - 2¹ = 32647 is a prime.

It is a D-number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (32647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5439 + ... + 5444.

It is an arithmetic number, because the mean of its divisors is an integer number (10884).

2³²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

32649 is a deficient number, since it is larger than the sum of its proper divisors (10887).

32649 is a wasteful number, since it uses less digits than its factorization.

32649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10886.

The product of its digits is 1296, while the sum is 24.

The square root of 32649 is about 180.6903428521. The cubic root of 32649 is about 31.9612160337.

The spelling of 32649 in words is "thirty-two thousand, six hundred forty-nine".