1057866803 has 16 divisors (see below), whose sum is σ = 1304268480. Its totient is φ = 837298176.

The previous prime is 1057866751. The next prime is 1057866809. The reversal of 1057866803 is 3086687501.

It is a cyclic number.

It is not a de Polignac number, because 1057866803 - 2⁶ = 1057866739 is a prime.

It is a super-2 number, since 2×1057866803² = 2238164345778881618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057866809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77558 + ... + 90171.

It is an arithmetic number, because the mean of its divisors is an integer number (81516780).

Almost surely, 2^1057866803 is an apocalyptic number.

1057866803 is a deficient number, since it is larger than the sum of its proper divisors (246401677).

1057866803 is a wasteful number, since it uses less digits than its factorization.

1057866803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167806.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1057866803 is about 32524.8643809625. The cubic root of 1057866803 is about 1018.9283898131.

The spelling of 1057866803 in words is "one billion, fifty-seven million, eight hundred sixty-six thousand, eight hundred three".