1423716731 has 4 divisors (see below), whose sum is σ = 1507464792. Its totient is φ = 1339968672.

The previous prime is 1423716709. The next prime is 1423716733. The reversal of 1423716731 is 1376173241.

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 1423716731 - 2¹⁰ = 1423715707 is a prime.

It is a super-2 number, since 2×1423716731² = 4053938660258652722, 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 = 1423716691 and 1423716700.

It is not an unprimeable number, because it can be changed into a prime (1423716733) 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 3 ways as a sum of consecutive naturals, for example, 41874005 + ... + 41874038.

It is an arithmetic number, because the mean of its divisors is an integer number (376866198).

Almost surely, 2^1423716731 is an apocalyptic number.

1423716731 is a deficient number, since it is larger than the sum of its proper divisors (83748061).

1423716731 is an equidigital number, since it uses as much as digits as its factorization.

1423716731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83748060.

The product of its digits is 21168, while the sum is 35.

The square root of 1423716731 is about 37732.1710348079. The cubic root of 1423716731 is about 1124.9706608974.

Adding to 1423716731 its reverse (1376173241), we get a palindrome (2799889972).

The spelling of 1423716731 in words is "one billion, four hundred twenty-three million, seven hundred sixteen thousand, seven hundred thirty-one".