1339799 has 4 divisors (see below), whose sum is σ = 1359864. Its totient is φ = 1319736.

The previous prime is 1339781. The next prime is 1339813. The reversal of 1339799 is 9979331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9979331 = 1907 ⋅5233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1339799 is a prime.

It is a super-2 number, since 2×1339799² = 3590122720802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339729) 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 3 ways as a sum of consecutive naturals, for example, 9932 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (339966).

2^1339799 is an apocalyptic number.

1339799 is a deficient number, since it is larger than the sum of its proper divisors (20065).

1339799 is an equidigital number, since it uses as much as digits as its factorization.

1339799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20064.

The product of its digits is 45927, while the sum is 41.

The square root of 1339799 is about 1157.4968682463. The cubic root of 1339799 is about 110.2418645005.

The spelling of 1339799 in words is "one million, three hundred thirty-nine thousand, seven hundred ninety-nine".