32664261 has 16 divisors (see below), whose sum is σ = 49868288. Its totient is φ = 18630000.

The previous prime is 32664253. The next prime is 32664263. The reversal of 32664261 is 16246623.

It is not a de Polignac number, because 32664261 - 2³ = 32664253 is a prime.

It is a super-2 number, since 2×32664261² = 2133907893352242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32664263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13386 + ... + 15636.

It is an arithmetic number, because the mean of its divisors is an integer number (3116768).

Almost surely, 2^32664261 is an apocalyptic number.

It is an amenable number.

32664261 is a deficient number, since it is larger than the sum of its proper divisors (17204027).

32664261 is a wasteful number, since it uses less digits than its factorization.

32664261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952.

The product of its digits is 10368, while the sum is 30.

The square root of 32664261 is about 5715.2656106256. The cubic root of 32664261 is about 319.6619509523.

The spelling of 32664261 in words is "thirty-two million, six hundred sixty-four thousand, two hundred sixty-one".