1396947 has 4 divisors (see below), whose sum is σ = 1862600. Its totient is φ = 931296.

The previous prime is 1396939. The next prime is 1396949. The reversal of 1396947 is 7496931.

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

It is not a de Polignac number, because 1396947 - 2³ = 1396939 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396949) 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, 232822 + ... + 232827.

It is an arithmetic number, because the mean of its divisors is an integer number (465650).

2^1396947 is an apocalyptic number.

1396947 is a deficient number, since it is larger than the sum of its proper divisors (465653).

1396947 is an equidigital number, since it uses as much as digits as its factorization.

1396947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465652.

The product of its digits is 40824, while the sum is 39.

The square root of 1396947 is about 1181.9251245320. The cubic root of 1396947 is about 111.7875169940.

The spelling of 1396947 in words is "one million, three hundred ninety-six thousand, nine hundred forty-seven".