1047438017 has 6 divisors (see below), whose sum is σ = 1112676678. Its totient is φ = 985823744.

The previous prime is 1047437999. The next prime is 1047438031. The reversal of 1047438017 is 7108347401.

It can be written as a sum of positive squares in 3 ways, for example, as 108076816 + 939361201 = 10396^2 + 30649^2 .

It is not a de Polignac number, because 1047438017 - 2⁸ = 1047437761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047438047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1811888 + ... + 1812465.

It is an arithmetic number, because the mean of its divisors is an integer number (185446113).

Almost surely, 2^1047438017 is an apocalyptic number.

1047438017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1047438017 is a deficient number, since it is larger than the sum of its proper divisors (65238661).

1047438017 is an equidigital number, since it uses as much as digits as its factorization.

1047438017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624387 (or 3624370 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1047438017 is about 32364.1470921141. The cubic root of 1047438017 is about 1015.5690200018.

The spelling of 1047438017 in words is "one billion, forty-seven million, four hundred thirty-eight thousand, seventeen".