1057427817 has 8 divisors (see below), whose sum is σ = 1410674496. Its totient is φ = 704566512.

The previous prime is 1057427809. The next prime is 1057427827. The reversal of 1057427817 is 7187247501.

1057427817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1057427817 - 2³ = 1057427809 is a prime.

It is a super-2 number, since 2×1057427817² = 2236307176330770978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057427807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89878 + ... + 100959.

It is an arithmetic number, because the mean of its divisors is an integer number (176334312).

Almost surely, 2^1057427817 is an apocalyptic number.

It is an amenable number.

1057427817 is a deficient number, since it is larger than the sum of its proper divisors (353246679).

1057427817 is a wasteful number, since it uses less digits than its factorization.

1057427817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192687.

The product of its (nonzero) digits is 109760, while the sum is 42.

The square root of 1057427817 is about 32518.1152129086. The cubic root of 1057427817 is about 1018.7874277742.

The spelling of 1057427817 in words is "one billion, fifty-seven million, four hundred twenty-seven thousand, eight hundred seventeen".