32106021 has 8 divisors (see below), whose sum is σ = 42881664. Its totient is φ = 21367200.

The previous prime is 32106017. The next prime is 32106023. The reversal of 32106021 is 12060123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32106021 - 2² = 32106017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32106023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7101 + ... + 10706.

It is an arithmetic number, because the mean of its divisors is an integer number (5360208).

Almost surely, 2^32106021 is an apocalyptic number.

It is an amenable number.

32106021 is a deficient number, since it is larger than the sum of its proper divisors (10775643).

32106021 is a wasteful number, since it uses less digits than its factorization.

32106021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18411.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 32106021 is about 5666.2175214159. The cubic root of 32106021 is about 317.8304443991.

Adding to 32106021 its reverse (12060123), we get a palindrome (44166144).

The spelling of 32106021 in words is "thirty-two million, one hundred six thousand, twenty-one".