1047438853 has 2 divisors, whose sum is σ = 1047438854. Its totient is φ = 1047438852.

The previous prime is 1047438839. The next prime is 1047438893. The reversal of 1047438853 is 3588347401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874858084 + 172580769 = 29578^2 + 13137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047438853 - 2⁹ = 1047438341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047438803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523719426 + 523719427.

It is an arithmetic number, because the mean of its divisors is an integer number (523719427).

Almost surely, 2^1047438853 is an apocalyptic number.

It is an amenable number.

1047438853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047438853 is an equidigital number, since it uses as much as digits as its factorization.

1047438853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 1047438853 is about 32364.1600076381. The cubic root of 1047438853 is about 1015.5692901898.

The spelling of 1047438853 in words is "one billion, forty-seven million, four hundred thirty-eight thousand, eight hundred fifty-three".