1056826 has 4 divisors (see below), whose sum is σ = 1585242. Its totient is φ = 528412.

The previous prime is 1056823. The next prime is 1056829. The reversal of 1056826 is 6286501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6286501 = 13 ⋅483577.

It is an interprime number because it is at equal distance from previous prime (1056823) and next prime (1056829).

It can be written as a sum of positive squares in only one way, i.e., 811801 + 245025 = 901^2 + 495^2 .

It is a super-2 number, since 2×1056826² = 2233762388552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056794 and 1056803.

It is not an unprimeable number, because it can be changed into a prime (1056823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264205 + ... + 264208.

2^1056826 is an apocalyptic number.

1056826 is the 550-th centered heptagonal number.

1056826 is a deficient number, since it is larger than the sum of its proper divisors (528416).

1056826 is an equidigital number, since it uses as much as digits as its factorization.

1056826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528415.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1056826 is about 1028.0204278126. The cubic root of 1056826 is about 101.8594115936.

The spelling of 1056826 in words is "one million, fifty-six thousand, eight hundred twenty-six".