1393804 has 6 divisors (see below), whose sum is σ = 2439164. Its totient is φ = 696900.

The previous prime is 1393781. The next prime is 1393807. The reversal of 1393804 is 4083931.

It is not an unprimeable number, because it can be changed into a prime (1393807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174222 + ... + 174229.

2^1393804 is an apocalyptic number.

It is an amenable number.

1393804 is a deficient number, since it is larger than the sum of its proper divisors (1045360).

1393804 is a wasteful number, since it uses less digits than its factorization.

1393804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348455 (or 348453 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1393804 is about 1180.5947653619. The cubic root of 1393804 is about 111.7036168900.

It can be divided in two parts, 1393 and 804, that added together give a cube (2197 = 13³).

The spelling of 1393804 in words is "one million, three hundred ninety-three thousand, eight hundred four".