1374643 has 4 divisors (see below), whose sum is σ = 1379128. Its totient is φ = 1370160.

The previous prime is 1374619. The next prime is 1374673. The reversal of 1374643 is 3464731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3464731 = 1409 ⋅2459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1374643 is a prime.

It is a Duffinian number.

1374643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1374613) 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 3 ways as a sum of consecutive naturals, for example, 1746 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (344782).

2^1374643 is an apocalyptic number.

1374643 is a deficient number, since it is larger than the sum of its proper divisors (4485).

1374643 is an equidigital number, since it uses as much as digits as its factorization.

1374643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484.

The product of its digits is 6048, while the sum is 28.

The square root of 1374643 is about 1172.4517047623. The cubic root of 1374643 is about 111.1893799271.

The spelling of 1374643 in words is "one million, three hundred seventy-four thousand, six hundred forty-three".