1396919 has 4 divisors (see below), whose sum is σ = 1401696. Its totient is φ = 1392144.

The previous prime is 1396909. The next prime is 1396939. The reversal of 1396919 is 9196931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1396919 - 2⁴ = 1396903 is a prime.

It is a super-2 number, since 2×1396919² = 3902765385122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (350424).

2^1396919 is an apocalyptic number.

1396919 is a deficient number, since it is larger than the sum of its proper divisors (4777).

1396919 is an equidigital number, since it uses as much as digits as its factorization.

1396919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776.

The product of its digits is 13122, while the sum is 38.

The square root of 1396919 is about 1181.9132793907. The cubic root of 1396919 is about 111.7867701102.

The spelling of 1396919 in words is "one million, three hundred ninety-six thousand, nine hundred nineteen".