1393893 has 6 divisors (see below), whose sum is σ = 2013414. Its totient is φ = 929256.

The previous prime is 1393891. The next prime is 1393913. The reversal of 1393893 is 3983931.

It can be written as a sum of positive squares in only one way, i.e., 1292769 + 101124 = 1137^2 + 318^2 .

It is not a de Polignac number, because 1393893 - 2¹ = 1393891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393891) 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, 77430 + ... + 77447.

It is an arithmetic number, because the mean of its divisors is an integer number (335569).

2^1393893 is an apocalyptic number.

It is an amenable number.

1393893 is a deficient number, since it is larger than the sum of its proper divisors (619521).

1393893 is a wasteful number, since it uses less digits than its factorization.

1393893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154883 (or 154880 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 1393893 is about 1180.6324576260. The cubic root of 1393893 is about 111.7059944147.

The spelling of 1393893 in words is "one million, three hundred ninety-three thousand, eight hundred ninety-three".