32016813 has 4 divisors (see below), whose sum is σ = 42689088. Its totient is φ = 21344540.

The previous prime is 32016799. The next prime is 32016833. The reversal of 32016813 is 31861023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31861023 = 3 ⋅10620341.

It is a cyclic number.

It is not a de Polignac number, because 32016813 - 2⁶ = 32016749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32016833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5336133 + ... + 5336138.

It is an arithmetic number, because the mean of its divisors is an integer number (10672272).

Almost surely, 2^32016813 is an apocalyptic number.

It is an amenable number.

32016813 is a deficient number, since it is larger than the sum of its proper divisors (10672275).

32016813 is a wasteful number, since it uses less digits than its factorization.

32016813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672274.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 32016813 is about 5658.3401276346. The cubic root of 32016813 is about 317.5358026875.

Adding to 32016813 its reverse (31861023), we get a palindrome (63877836).

The spelling of 32016813 in words is "thirty-two million, sixteen thousand, eight hundred thirteen".