1396555 has 4 divisors (see below), whose sum is σ = 1675872. Its totient is φ = 1117240.

The previous prime is 1396547. The next prime is 1396559. The reversal of 1396555 is 5556931.

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

It is not a de Polignac number, because 1396555 - 2³ = 1396547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1396555.

It is not an unprimeable number, because it can be changed into a prime (1396559) 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, 139651 + ... + 139660.

It is an arithmetic number, because the mean of its divisors is an integer number (418968).

2^1396555 is an apocalyptic number.

1396555 is a deficient number, since it is larger than the sum of its proper divisors (279317).

1396555 is an equidigital number, since it uses as much as digits as its factorization.

1396555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279316.

The product of its digits is 20250, while the sum is 34.

The square root of 1396555 is about 1181.7592817490. The cubic root of 1396555 is about 111.7770597120. Note that the first 3 decimals are identical.

The spelling of 1396555 in words is "one million, three hundred ninety-six thousand, five hundred fifty-five".