1390593 has 4 divisors (see below), whose sum is σ = 1854128. Its totient is φ = 927060.

The previous prime is 1390573. The next prime is 1390601. The reversal of 1390593 is 3950931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1390593 - 2¹⁰ = 1389569 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1390593.

It is not an unprimeable number, because it can be changed into a prime (1390573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231763 + ... + 231768.

It is an arithmetic number, because the mean of its divisors is an integer number (463532).

It is a Proth number, since it is equal to 679 ⋅ 2¹¹ + 1 and 679 < 2¹¹.

2^1390593 is an apocalyptic number.

It is an amenable number.

1390593 is a deficient number, since it is larger than the sum of its proper divisors (463535).

1390593 is an equidigital number, since it uses as much as digits as its factorization.

1390593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463534.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 1390593 is about 1179.2340734562. The cubic root of 1390593 is about 111.6177712222.

The spelling of 1390593 in words is "one million, three hundred ninety thousand, five hundred ninety-three".