1428265793 has 4 divisors (see below), whose sum is σ = 1428480768. Its totient is φ = 1428050820.

The previous prime is 1428265789. The next prime is 1428265801. The reversal of 1428265793 is 3975628241.

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.

It is a cyclic number.

It is not a de Polignac number, because 1428265793 - 2² = 1428265789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428265703) 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, 97193 + ... + 110918.

It is an arithmetic number, because the mean of its divisors is an integer number (357120192).

Almost surely, 2^1428265793 is an apocalyptic number.

It is an amenable number.

1428265793 is a deficient number, since it is larger than the sum of its proper divisors (214975).

1428265793 is an equidigital number, since it uses as much as digits as its factorization.

1428265793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214974.

The product of its digits is 725760, while the sum is 47.

The square root of 1428265793 is about 37792.4039060762. The cubic root of 1428265793 is about 1126.1675563850.

The spelling of 1428265793 in words is "one billion, four hundred twenty-eight million, two hundred sixty-five thousand, seven hundred ninety-three".