1047056389 has 16 divisors (see below), whose sum is σ = 1111524480. Its totient is φ = 983568960.

The previous prime is 1047056363. The next prime is 1047056411. The reversal of 1047056389 is 9836507401.

It is a cyclic number.

It is not a de Polignac number, because 1047056389 - 2⁵ = 1047056357 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 (1047056089) 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 15 ways as a sum of consecutive naturals, for example, 1583719 + ... + 1584379.

It is an arithmetic number, because the mean of its divisors is an integer number (69470280).

Almost surely, 2^1047056389 is an apocalyptic number.

1047056389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1047056389 is a deficient number, since it is larger than the sum of its proper divisors (64468091).

1047056389 is a wasteful number, since it uses less digits than its factorization.

1047056389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1047056389 is about 32358.2507098267. The cubic root of 1047056389 is about 1015.4456661146.

The spelling of 1047056389 in words is "one billion, forty-seven million, fifty-six thousand, three hundred eighty-nine".