64016431 has 4 divisors (see below), whose sum is σ = 64033200. Its totient is φ = 63999664.

The previous prime is 64016413. The next prime is 64016467. The reversal of 64016431 is 13461046.

64016431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64016431 - 2¹¹ = 64014383 is a prime.

It is a super-2 number, since 2×64016431² = 8196206875955522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64016396 and 64016405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64016471) 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, 435 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (16008300).

Almost surely, 2^64016431 is an apocalyptic number.

64016431 is a deficient number, since it is larger than the sum of its proper divisors (16769).

64016431 is a wasteful number, since it uses less digits than its factorization.

64016431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16768.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 64016431 is about 8001.0268715959. The cubic root of 64016431 is about 400.0342283210.

Adding to 64016431 its reverse (13461046), we get a palindrome (77477477).

It can be divided in two parts, 640 and 16431, that added together give a palindrome (17071).

The spelling of 64016431 in words is "sixty-four million, sixteen thousand, four hundred thirty-one".