1057778 has 8 divisors (see below), whose sum is σ = 1596672. Its totient is φ = 525556.

The previous prime is 1057753. The next prime is 1057781. The reversal of 1057778 is 8777501.

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

It is a super-2 number, since 2×1057778² = 2237788594568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 1917.

It is an arithmetic number, because the mean of its divisors is an integer number (199584).

2^1057778 is an apocalyptic number.

1057778 is a deficient number, since it is larger than the sum of its proper divisors (538894).

1057778 is a wasteful number, since it uses less digits than its factorization.

1057778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 13720, while the sum is 35.

The square root of 1057778 is about 1028.4833494034. The cubic root of 1057778 is about 101.8899877581.

The spelling of 1057778 in words is "one million, fifty-seven thousand, seven hundred seventy-eight".