1047053866 has 4 divisors (see below), whose sum is σ = 1570580802. Its totient is φ = 523526932.

The previous prime is 1047053803. The next prime is 1047053869. The reversal of 1047053866 is 6683507401.

It is a happy number.

1047053866 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., 1009904841 + 37149025 = 31779^2 + 6095^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1047053869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261763465 + ... + 261763468.

Almost surely, 2^1047053866 is an apocalyptic number.

1047053866 is a deficient number, since it is larger than the sum of its proper divisors (523526936).

1047053866 is an equidigital number, since it uses as much as digits as its factorization.

1047053866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523526935.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1047053866 is about 32358.2117243830. The cubic root of 1047053866 is about 1015.4448505038. Note that the first 3 decimals are identical.

The spelling of 1047053866 in words is "one billion, forty-seven million, fifty-three thousand, eight hundred sixty-six".