443142997 has 8 divisors (see below), whose sum is σ = 500099040. Its totient is φ = 388965360.

The previous prime is 443142983. The next prime is 443143003. The reversal of 443142997 is 799241344.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443142997 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 (443142197) 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, 694263 + ... + 694900.

It is an arithmetic number, because the mean of its divisors is an integer number (62512380).

Almost surely, 2^443142997 is an apocalyptic number.

It is an amenable number.

443142997 is a deficient number, since it is larger than the sum of its proper divisors (56956043).

443142997 is a wasteful number, since it uses less digits than its factorization.

443142997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389203.

The product of its digits is 217728, while the sum is 43.

The square root of 443142997 is about 21050.9619020129. The cubic root of 443142997 is about 762.3972073919.

The spelling of 443142997 in words is "four hundred forty-three million, one hundred forty-two thousand, nine hundred ninety-seven".