1380659 has 8 divisors (see below), whose sum is σ = 1605120. Its totient is φ = 1163016.

The previous prime is 1380653. The next prime is 1380671. The reversal of 1380659 is 9560831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (200640).

2^1380659 is an apocalyptic number.

1380659 is a deficient number, since it is larger than the sum of its proper divisors (224461).

1380659 is an equidigital number, since it uses as much as digits as its factorization.

1380659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1380659 is about 1175.0144679960. The cubic root of 1380659 is about 111.3513472790.

The spelling of 1380659 in words is "one million, three hundred eighty thousand, six hundred fifty-nine".