1443996997 has 8 divisors (see below), whose sum is σ = 1463414400. Its totient is φ = 1424608224.

The previous prime is 1443996991. The next prime is 1443997003. The reversal of 1443996997 is 7996993441.

It is an interprime number because it is at equal distance from previous prime (1443996991) and next prime (1443997003).

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 1443996997 - 2²³ = 1435608389 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 (1443996991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106329 + ... + 119137.

It is an arithmetic number, because the mean of its divisors is an integer number (182926800).

Almost surely, 2^1443996997 is an apocalyptic number.

It is an amenable number.

1443996997 is a deficient number, since it is larger than the sum of its proper divisors (19417403).

1443996997 is a wasteful number, since it uses less digits than its factorization.

1443996997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14315.

The product of its digits is 13226976, while the sum is 61.

The square root of 1443996997 is about 37999.9604868216. The cubic root of 1443996997 is about 1130.2870800610.

The spelling of 1443996997 in words is "one billion, four hundred forty-three million, nine hundred ninety-six thousand, nine hundred ninety-seven".