1047668357 has 4 divisors (see below), whose sum is σ = 1075983756. Its totient is φ = 1019352960.

The previous prime is 1047668309. The next prime is 1047668389. The reversal of 1047668357 is 7538667401.

1047668357 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, and also an emirpimes, since its reverse is a distinct semiprime: 7538667401 = 34303 ⋅219767.

It can be written as a sum of positive squares in 2 ways, for example, as 644702881 + 402965476 = 25391^2 + 20074^2 .

It is not a de Polignac number, because 1047668357 - 2²⁰ = 1046619781 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 (1047668257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14157644 + ... + 14157717.

It is an arithmetic number, because the mean of its divisors is an integer number (268995939).

Almost surely, 2^1047668357 is an apocalyptic number.

It is an amenable number.

1047668357 is a deficient number, since it is larger than the sum of its proper divisors (28315399).

1047668357 is an equidigital number, since it uses as much as digits as its factorization.

1047668357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28315398.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 1047668357 is about 32367.7054639343. The cubic root of 1047668357 is about 1015.6434584631.

The spelling of 1047668357 in words is "one billion, forty-seven million, six hundred sixty-eight thousand, three hundred fifty-seven".