1364839 has 4 divisors (see below), whose sum is σ = 1559824. Its totient is φ = 1169856.

The previous prime is 1364821. The next prime is 1364861. The reversal of 1364839 is 9384631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9384631 = 47 ⋅199673.

It is a cyclic number.

It is not a de Polignac number, because 1364839 - 2⁹ = 1364327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97482 + ... + 97495.

It is an arithmetic number, because the mean of its divisors is an integer number (389956).

2^1364839 is an apocalyptic number.

1364839 is a deficient number, since it is larger than the sum of its proper divisors (194985).

1364839 is an equidigital number, since it uses as much as digits as its factorization.

1364839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194984.

The product of its digits is 15552, while the sum is 34.

The square root of 1364839 is about 1168.2632408837. The cubic root of 1364839 is about 110.9244135459.

The spelling of 1364839 in words is "one million, three hundred sixty-four thousand, eight hundred thirty-nine".