1047856738 has 4 divisors (see below), whose sum is σ = 1571785110. Its totient is φ = 523928368.

The previous prime is 1047856729. The next prime is 1047856741. The reversal of 1047856738 is 8376587401.

It is a happy number.

1047856738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 933730249 + 114126489 = 30557^2 + 10683^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1047856691 and 1047856700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261964183 + ... + 261964186.

Almost surely, 2^1047856738 is an apocalyptic number.

1047856738 is a deficient number, since it is larger than the sum of its proper divisors (523928372).

1047856738 is an equidigital number, since it uses as much as digits as its factorization.

1047856738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523928371.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 1047856738 is about 32370.6153478738. The cubic root of 1047856738 is about 1015.7043290184.

The spelling of 1047856738 in words is "one billion, forty-seven million, eight hundred fifty-six thousand, seven hundred thirty-eight".