373643 has 8 divisors (see below), whose sum is σ = 408960. Its totient is φ = 339840.

The previous prime is 373631. The next prime is 373649. The reversal of 373643 is 346373.

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

It is a cyclic number.

It is not a de Polignac number, because 373643 - 2¹⁶ = 308107 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (373649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173 + ... + 881.

It is an arithmetic number, because the mean of its divisors is an integer number (51120).

2³⁷³⁶⁴³ is an apocalyptic number.

373643 is a deficient number, since it is larger than the sum of its proper divisors (35317).

373643 is a wasteful number, since it uses less digits than its factorization.

373643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its digits is 4536, while the sum is 26.

The square root of 373643 is about 611.2634456599. The cubic root of 373643 is about 72.0253897082.

The spelling of 373643 in words is "three hundred seventy-three thousand, six hundred forty-three".