32106491 has 4 divisors (see below), whose sum is σ = 32974272. Its totient is φ = 31238712.

The previous prime is 32106479. The next prime is 32106493. The reversal of 32106491 is 19460123.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32106491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32106491.

It is not an unprimeable number, because it can be changed into a prime (32106493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433835 + ... + 433908.

It is an arithmetic number, because the mean of its divisors is an integer number (8243568).

Almost surely, 2^32106491 is an apocalyptic number.

32106491 is a deficient number, since it is larger than the sum of its proper divisors (867781).

32106491 is an equidigital number, since it uses as much as digits as its factorization.

32106491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867780.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 32106491 is about 5666.2589951396. The cubic root of 32106491 is about 317.8319952980.

The spelling of 32106491 in words is "thirty-two million, one hundred six thousand, four hundred ninety-one".