1390959 has 8 divisors (see below), whose sum is σ = 2060720. Its totient is φ = 927288.

The previous prime is 1390937. The next prime is 1390967. The reversal of 1390959 is 9590931.

It is not a de Polignac number, because 1390959 - 2⁸ = 1390703 is a prime.

It is a Duffinian number.

1390959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390919) 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 7 ways as a sum of consecutive naturals, for example, 25732 + ... + 25785.

It is an arithmetic number, because the mean of its divisors is an integer number (257590).

2^1390959 is an apocalyptic number.

1390959 is a deficient number, since it is larger than the sum of its proper divisors (669761).

1390959 is an equidigital number, since it uses as much as digits as its factorization.

1390959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51526 (or 51520 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 1390959 is about 1179.3892487216. The cubic root of 1390959 is about 111.6275628532.

The spelling of 1390959 in words is "one million, three hundred ninety thousand, nine hundred fifty-nine".