32128039 has 4 divisors (see below), whose sum is σ = 32147680. Its totient is φ = 32108400.

The previous prime is 32128001. The next prime is 32128081. The reversal of 32128039 is 93082123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32128039 - 2¹¹ = 32125991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32127998 and 32128016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32128339) 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, 7119 + ... + 10720.

It is an arithmetic number, because the mean of its divisors is an integer number (8036920).

Almost surely, 2^32128039 is an apocalyptic number.

32128039 is a deficient number, since it is larger than the sum of its proper divisors (19641).

32128039 is a wasteful number, since it uses less digits than its factorization.

32128039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19640.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 32128039 is about 5668.1601071247. The cubic root of 32128039 is about 317.9030828160.

The spelling of 32128039 in words is "thirty-two million, one hundred twenty-eight thousand, thirty-nine".