65326431 has 8 divisors (see below), whose sum is σ = 87193264. Its totient is φ = 43505280.

The previous prime is 65326403. The next prime is 65326433. The reversal of 65326431 is 13462356.

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

It is not a de Polignac number, because 65326431 - 2⁵ = 65326399 is a prime.

It is a super-2 number, since 2×65326431² = 8535085174395522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65326433) 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 7 ways as a sum of consecutive naturals, for example, 7930 + ... + 13911.

It is an arithmetic number, because the mean of its divisors is an integer number (10899158).

Almost surely, 2^65326431 is an apocalyptic number.

65326431 is a deficient number, since it is larger than the sum of its proper divisors (21866833).

65326431 is a wasteful number, since it uses less digits than its factorization.

65326431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22841.

The product of its digits is 12960, while the sum is 30.

The square root of 65326431 is about 8082.4767862333. The cubic root of 65326431 is about 402.7445238207.

Adding to 65326431 its reverse (13462356), we get a palindrome (78788787).

The spelling of 65326431 in words is "sixty-five million, three hundred twenty-six thousand, four hundred thirty-one".