1399893 has 16 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 832880.

The previous prime is 1399883. The next prime is 1399913. The reversal of 1399893 is 3989931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1399893 - 2⁵ = 1399861 is a prime.

It is a super-2 number, since 2×1399893² = 3919400822898, which contains 22 as substring.

It is a Curzon number.

1399893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588 + ... + 2306.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^1399893 is an apocalyptic number.

It is an amenable number.

1399893 is a deficient number, since it is larger than the sum of its proper divisors (673707).

1399893 is a wasteful number, since it uses less digits than its factorization.

1399893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792.

The product of its digits is 52488, while the sum is 42.

The square root of 1399893 is about 1183.1707400033. The cubic root of 1399893 is about 111.8660441423.

The spelling of 1399893 in words is "one million, three hundred ninety-nine thousand, eight hundred ninety-three".