1073643 has 8 divisors (see below), whose sum is σ = 1440768. Its totient is φ = 711144.

The previous prime is 1073627. The next prime is 1073647. The reversal of 1073643 is 3463701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1073643 - 2⁴ = 1073627 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1073647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571 + ... + 1572.

It is an arithmetic number, because the mean of its divisors is an integer number (180096).

2^1073643 is an apocalyptic number.

1073643 is a deficient number, since it is larger than the sum of its proper divisors (367125).

1073643 is a wasteful number, since it uses less digits than its factorization.

1073643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1073643 is about 1036.1674575087. The cubic root of 1073643 is about 102.3968583733.

The spelling of 1073643 in words is "one million, seventy-three thousand, six hundred forty-three".