1396279 has 4 divisors (see below), whose sum is σ = 1405800. Its totient is φ = 1386760.

The previous prime is 1396273. The next prime is 1396301. The reversal of 1396279 is 9726931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9726931 = 53 ⋅183527.

It is a cyclic number.

It is not a de Polignac number, because 1396279 - 2⁵ = 1396247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4537 + ... + 4834.

It is an arithmetic number, because the mean of its divisors is an integer number (351450).

2^1396279 is an apocalyptic number.

1396279 is a deficient number, since it is larger than the sum of its proper divisors (9521).

1396279 is an equidigital number, since it uses as much as digits as its factorization.

1396279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520.

The product of its digits is 20412, while the sum is 37.

The square root of 1396279 is about 1181.6425009283. The cubic root of 1396279 is about 111.7696957579.

It can be divided in two parts, 13962 and 79, that added together give a palindrome (14041).

The spelling of 1396279 in words is "one million, three hundred ninety-six thousand, two hundred seventy-nine".