65047431 has 16 divisors (see below), whose sum is σ = 92586240. Its totient is φ = 40501440.

The previous prime is 65047387. The next prime is 65047459. The reversal of 65047431 is 13474056.

65047431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65047431 - 2⁷ = 65047303 is a prime.

It is a super-2 number, since 2×65047431² = 8462336559399522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65049431) 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 15 ways as a sum of consecutive naturals, for example, 3990 + ... + 12083.

It is an arithmetic number, because the mean of its divisors is an integer number (5786640).

Almost surely, 2^65047431 is an apocalyptic number.

65047431 is a deficient number, since it is larger than the sum of its proper divisors (27538809).

65047431 is a wasteful number, since it uses less digits than its factorization.

65047431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16166.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 65047431 is about 8065.1987576253. The cubic root of 65047431 is about 402.1703505643.

The spelling of 65047431 in words is "sixty-five million, forty-seven thousand, four hundred thirty-one".