1356673 has 4 divisors (see below), whose sum is σ = 1363968. Its totient is φ = 1349380.

The previous prime is 1356671. The next prime is 1356689. The reversal of 1356673 is 3766531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3766531 = 31 ⋅121501.

It is a cyclic number.

It is not a de Polignac number, because 1356673 - 2¹ = 1356671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356671) 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, 3361 + ... + 3742.

It is an arithmetic number, because the mean of its divisors is an integer number (340992).

2^1356673 is an apocalyptic number.

It is an amenable number.

1356673 is a deficient number, since it is larger than the sum of its proper divisors (7295).

1356673 is an equidigital number, since it uses as much as digits as its factorization.

1356673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294.

The product of its digits is 11340, while the sum is 31.

The square root of 1356673 is about 1164.7630660353. The cubic root of 1356673 is about 110.7027460546.

The spelling of 1356673 in words is "one million, three hundred fifty-six thousand, six hundred seventy-three".