643093 has 16 divisors (see below), whose sum is σ = 786240. Its totient is φ = 518400.

The previous prime is 643087. The next prime is 643099. The reversal of 643093 is 390346.

It is an interprime number because it is at equal distance from previous prime (643087) and next prime (643099).

It is a cyclic number.

It is not a de Polignac number, because 643093 - 2⁵ = 643061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (643099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3463 + ... + 3643.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁶⁴³⁰⁹³ is an apocalyptic number.

It is an amenable number.

643093 is a deficient number, since it is larger than the sum of its proper divisors (143147).

643093 is a wasteful number, since it uses less digits than its factorization.

643093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 643093 is about 801.9307950191. The cubic root of 643093 is about 86.3159909445.

The spelling of 643093 in words is "six hundred forty-three thousand, ninety-three".