63713431 has 4 divisors (see below), whose sum is σ = 64332112. Its totient is φ = 63094752.

The previous prime is 63713417. The next prime is 63713453. The reversal of 63713431 is 13431736.

It is a happy number.

63713431 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 63713431 - 2¹⁷ = 63582359 is a prime.

It is a super-2 number, since 2×63713431² = 8118802579583522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63713431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63713491) 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, 309186 + ... + 309391.

It is an arithmetic number, because the mean of its divisors is an integer number (16083028).

Almost surely, 2^63713431 is an apocalyptic number.

63713431 is a deficient number, since it is larger than the sum of its proper divisors (618681).

63713431 is a wasteful number, since it uses less digits than its factorization.

63713431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618680.

The product of its digits is 4536, while the sum is 28.

The square root of 63713431 is about 7982.0693432217. The cubic root of 63713431 is about 399.4020879483.

The spelling of 63713431 in words is "sixty-three million, seven hundred thirteen thousand, four hundred thirty-one".