616443 has 8 divisors (see below), whose sum is σ = 837648. Its totient is φ = 403104.

The previous prime is 616439. The next prime is 616459. The reversal of 616443 is 344616.

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

It is not a de Polignac number, because 616443 - 2² = 616439 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (616433) 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, 1780 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (104706).

2⁶¹⁶⁴⁴³ is an apocalyptic number.

616443 is a deficient number, since it is larger than the sum of its proper divisors (221205).

616443 is a wasteful number, since it uses less digits than its factorization.

616443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

The product of its digits is 1728, while the sum is 24.

The square root of 616443 is about 785.1388412249. The cubic root of 616443 is about 85.1068092128.

The spelling of 616443 in words is "six hundred sixteen thousand, four hundred forty-three".