32066639 has 4 divisors (see below), whose sum is σ = 34981800. Its totient is φ = 29151480.

The previous prime is 32066621. The next prime is 32066651. The reversal of 32066639 is 93666023.

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 32066639 - 2¹⁶ = 32001103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32066599 and 32066608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32066609) 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, 1457564 + ... + 1457585.

It is an arithmetic number, because the mean of its divisors is an integer number (8745450).

Almost surely, 2^32066639 is an apocalyptic number.

32066639 is a deficient number, since it is larger than the sum of its proper divisors (2915161).

32066639 is a wasteful number, since it uses less digits than its factorization.

32066639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915160.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 32066639 is about 5662.7412972870. The cubic root of 32066639 is about 317.7004384639.

The spelling of 32066639 in words is "thirty-two million, sixty-six thousand, six hundred thirty-nine".