1393486 has 4 divisors (see below), whose sum is σ = 2090232. Its totient is φ = 696742.

The previous prime is 1393471. The next prime is 1393489. The reversal of 1393486 is 6843931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6843931 = 83 ⋅82457.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348370 + ... + 348373.

It is an arithmetic number, because the mean of its divisors is an integer number (522558).

2^1393486 is an apocalyptic number.

1393486 is a deficient number, since it is larger than the sum of its proper divisors (696746).

1393486 is an equidigital number, since it uses as much as digits as its factorization.

1393486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696745.

The product of its digits is 15552, while the sum is 34.

The square root of 1393486 is about 1180.4600797994. The cubic root of 1393486 is about 111.6951210872.

The spelling of 1393486 in words is "one million, three hundred ninety-three thousand, four hundred eighty-six".