1428437713 has 4 divisors (see below), whose sum is σ = 1428619248. Its totient is φ = 1428256180.

The previous prime is 1428437693. The next prime is 1428437723. The reversal of 1428437713 is 3177348241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3177348241 = 617 ⋅5149673.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1428437713 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428437723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78403 + ... + 94888.

It is an arithmetic number, because the mean of its divisors is an integer number (357154812).

Almost surely, 2^1428437713 is an apocalyptic number.

It is an amenable number.

1428437713 is a deficient number, since it is larger than the sum of its proper divisors (181535).

1428437713 is an equidigital number, since it uses as much as digits as its factorization.

1428437713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181534.

The product of its digits is 112896, while the sum is 40.

The square root of 1428437713 is about 37794.6783687863. The cubic root of 1428437713 is about 1126.2127400754.

The spelling of 1428437713 in words is "one billion, four hundred twenty-eight million, four hundred thirty-seven thousand, seven hundred thirteen".