1399933 has 4 divisors (see below), whose sum is σ = 1482300. Its totient is φ = 1317568.

The previous prime is 1399919. The next prime is 1399943. The reversal of 1399933 is 3399931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3399931 = 29 ⋅117239.

It can be written as a sum of positive squares in 2 ways, for example, as 1036324 + 363609 = 1018^2 + 603^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1399933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1399892 and 1399901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41158 + ... + 41191.

It is an arithmetic number, because the mean of its divisors is an integer number (370575).

2^1399933 is an apocalyptic number.

It is an amenable number.

1399933 is a deficient number, since it is larger than the sum of its proper divisors (82367).

1399933 is an equidigital number, since it uses as much as digits as its factorization.

1399933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82366.

The product of its digits is 19683, while the sum is 37.

The square root of 1399933 is about 1183.1876436136. The cubic root of 1399933 is about 111.8671096045.

It can be divided in two parts, 1399 and 933, that added together give a palindrome (2332).

The spelling of 1399933 in words is "one million, three hundred ninety-nine thousand, nine hundred thirty-three".