32638673 has 4 divisors (see below), whose sum is σ = 32754288. Its totient is φ = 32523060.

The previous prime is 32638663. The next prime is 32638687. The reversal of 32638673 is 37683623.

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: 37683623 = 431 ⋅87433.

It is a cyclic number.

It is not a de Polignac number, because 32638673 - 2¹⁸ = 32376529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32638603) 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, 57383 + ... + 57948.

It is an arithmetic number, because the mean of its divisors is an integer number (8188572).

Almost surely, 2^32638673 is an apocalyptic number.

It is an amenable number.

32638673 is a deficient number, since it is larger than the sum of its proper divisors (115615).

32638673 is a wasteful number, since it uses less digits than its factorization.

32638673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115614.

The product of its digits is 108864, while the sum is 38.

The square root of 32638673 is about 5713.0266059244. The cubic root of 32638673 is about 319.5784586121.

The spelling of 32638673 in words is "thirty-two million, six hundred thirty-eight thousand, six hundred seventy-three".