32471213 has 4 divisors (see below), whose sum is σ = 33590940. Its totient is φ = 31351488.

The previous prime is 32471189. The next prime is 32471227. The reversal of 32471213 is 31217423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31217423 = 17 ⋅1836319.

It can be written as a sum of positive squares in 2 ways, for example, as 14645929 + 17825284 = 3827^2 + 4222^2 .

It is a cyclic number.

It is not a de Polignac number, because 32471213 - 2⁸ = 32470957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32471273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559820 + ... + 559877.

It is an arithmetic number, because the mean of its divisors is an integer number (8397735).

Almost surely, 2^32471213 is an apocalyptic number.

It is an amenable number.

32471213 is a deficient number, since it is larger than the sum of its proper divisors (1119727).

32471213 is a wasteful number, since it uses less digits than its factorization.

32471213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119726.

The product of its digits is 1008, while the sum is 23.

The square root of 32471213 is about 5698.3517792428. The cubic root of 32471213 is about 319.0309649812.

Adding to 32471213 its reverse (31217423), we get a palindrome (63688636).

The spelling of 32471213 in words is "thirty-two million, four hundred seventy-one thousand, two hundred thirteen".