1047398799 has 4 divisors (see below), whose sum is σ = 1396531736. Its totient is φ = 698265864.

The previous prime is 1047398797. The next prime is 1047398809. The reversal of 1047398799 is 9978937401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1047398799 - 2¹ = 1047398797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047398791) 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, 174566464 + ... + 174566469.

It is an arithmetic number, because the mean of its divisors is an integer number (349132934).

Almost surely, 2^1047398799 is an apocalyptic number.

1047398799 is a deficient number, since it is larger than the sum of its proper divisors (349132937).

1047398799 is an equidigital number, since it uses as much as digits as its factorization.

1047398799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349132936.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The square root of 1047398799 is about 32363.5411999367. The cubic root of 1047398799 is about 1015.5563449215.

The spelling of 1047398799 in words is "one billion, forty-seven million, three hundred ninety-eight thousand, seven hundred ninety-nine".