1396566 has 12 divisors (see below), whose sum is σ = 3025932. Its totient is φ = 465516.

The previous prime is 1396561. The next prime is 1396579. The reversal of 1396566 is 6656931.

1396566 is a `hidden beast` number, since 1 + 3 + 96 + 566 = 666.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1396566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38776 + ... + 38811.

It is an arithmetic number, because the mean of its divisors is an integer number (252161).

2^1396566 is an apocalyptic number.

1396566 is an abundant number, since it is smaller than the sum of its proper divisors (1629366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1396566 is a wasteful number, since it uses less digits than its factorization.

1396566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77595 (or 77592 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 1396566 is about 1181.7639358180. The cubic root of 1396566 is about 111.7773531829. Note that the first 3 decimals are identical.

The spelling of 1396566 in words is "one million, three hundred ninety-six thousand, five hundred sixty-six".