1339899 has 16 divisors (see below), whose sum is σ = 2052480. Its totient is φ = 768960.

The previous prime is 1339873. The next prime is 1339901. The reversal of 1339899 is 9989331.

It is a happy number.

It is not a de Polignac number, because 1339899 - 2⁸ = 1339643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1339899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339859) 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 15 ways as a sum of consecutive naturals, for example, 442 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (128280).

2^1339899 is an apocalyptic number.

1339899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1339899 is a deficient number, since it is larger than the sum of its proper divisors (712581).

1339899 is a wasteful number, since it uses less digits than its factorization.

1339899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170.

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

The square root of 1339899 is about 1157.5400641015. The cubic root of 1339899 is about 110.2446071786.

It can be divided in two parts, 1 and 339899, that added together give a triangular number (339900 = T₈₂₄).

The spelling of 1339899 in words is "one million, three hundred thirty-nine thousand, eight hundred ninety-nine".