1339709 has 12 divisors (see below), whose sum is σ = 1641600. Its totient is φ = 1087128.

The previous prime is 1339693. The next prime is 1339711. The reversal of 1339709 is 9079331.

It is a happy number.

It is not a de Polignac number, because 1339709 - 2⁴ = 1339693 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 212 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (136800).

2^1339709 is an apocalyptic number.

1339709 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1339709 is a deficient number, since it is larger than the sum of its proper divisors (301891).

1339709 is a wasteful number, since it uses less digits than its factorization.

1339709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 1339709 is about 1157.4579905984. The cubic root of 1339709 is about 110.2393959735.

It can be divided in two parts, 1339 and 709, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1339709 in words is "one million, three hundred thirty-nine thousand, seven hundred nine".