1396826 has 4 divisors (see below), whose sum is σ = 2095242. Its totient is φ = 698412.

The previous prime is 1396819. The next prime is 1396841. The reversal of 1396826 is 6286931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6286931 = 7 ⋅898133.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 39601 = 1165^2 + 199^2 .

It is a super-2 number, since 2×1396826² = 3902245748552, which contains 22 as substring.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349205 + ... + 349208.

2^1396826 is an apocalyptic number.

1396826 is a deficient number, since it is larger than the sum of its proper divisors (698416).

1396826 is an equidigital number, since it uses as much as digits as its factorization.

1396826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698415.

The product of its digits is 15552, while the sum is 35.

The square root of 1396826 is about 1181.8739357478. The cubic root of 1396826 is about 111.7842893173.

It can be divided in two parts, 1396 and 826, that added together give a palindrome (2222).

The spelling of 1396826 in words is "one million, three hundred ninety-six thousand, eight hundred twenty-six".