1050857 has 4 divisors (see below), whose sum is σ = 1053396. Its totient is φ = 1048320.

The previous prime is 1050853. The next prime is 1050887. The reversal of 1050857 is 7580501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7580501 = 23 ⋅329587.

It can be written as a sum of positive squares in 2 ways, for example, as 609961 + 440896 = 781^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050857 - 2² = 1050853 is a prime.

It is a super-2 number, since 2×1050857² = 2208600868898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (263349).

2^1050857 is an apocalyptic number.

It is an amenable number.

1050857 is a deficient number, since it is larger than the sum of its proper divisors (2539).

1050857 is an equidigital number, since it uses as much as digits as its factorization.

1050857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 1050857 is about 1025.1131644848. The cubic root of 1050857 is about 101.6672805959.

The spelling of 1050857 in words is "one million, fifty thousand, eight hundred fifty-seven".