1057217 has 8 divisors (see below), whose sum is σ = 1272000. Its totient is φ = 858384.

The previous prime is 1057183. The next prime is 1057219. The reversal of 1057217 is 7127501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1057217 - 2¹⁴ = 1040833 is a prime.

It is a super-2 number, since 2×1057217² = 2235415570178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1057192 and 1057201.

It is not an unprimeable number, because it can be changed into a prime (1057219) 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, 3842 + ... + 4107.

It is an arithmetic number, because the mean of its divisors is an integer number (159000).

2^1057217 is an apocalyptic number.

It is an amenable number.

1057217 is a deficient number, since it is larger than the sum of its proper divisors (214783).

1057217 is an equidigital number, since it uses as much as digits as its factorization.

1057217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 1057217 is about 1028.2105815445. The cubic root of 1057217 is about 101.8719718823.

It can be divided in two parts, 105721 and 7, that multiplied together give a palindrome (740047).

The spelling of 1057217 in words is "one million, fifty-seven thousand, two hundred seventeen".