32478851 has 4 divisors (see below), whose sum is σ = 33029400. Its totient is φ = 31928304.

The previous prime is 32478827. The next prime is 32478863. The reversal of 32478851 is 15887423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15887423 = 149 ⋅106627.

It is a cyclic number.

It is not a de Polignac number, because 32478851 - 2¹⁴ = 32462467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32478151) 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, 275186 + ... + 275303.

It is an arithmetic number, because the mean of its divisors is an integer number (8257350).

Almost surely, 2^32478851 is an apocalyptic number.

32478851 is a deficient number, since it is larger than the sum of its proper divisors (550549).

32478851 is an equidigital number, since it uses as much as digits as its factorization.

32478851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550548.

The product of its digits is 53760, while the sum is 38.

The square root of 32478851 is about 5699.0219336304. The cubic root of 32478851 is about 319.0559775719.

The spelling of 32478851 in words is "thirty-two million, four hundred seventy-eight thousand, eight hundred fifty-one".