1447993899 has 12 divisors (see below), whose sum is σ = 2281687512. Its totient is φ = 877572000.

The previous prime is 1447993891. The next prime is 1447993903. The reversal of 1447993899 is 9983997441.

It is not a de Polignac number, because 1447993899 - 2³ = 1447993891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1447993891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7313002 + ... + 7313199.

It is an arithmetic number, because the mean of its divisors is an integer number (190140626).

Almost surely, 2^1447993899 is an apocalyptic number.

1447993899 is a deficient number, since it is larger than the sum of its proper divisors (833693613).

1447993899 is a wasteful number, since it uses less digits than its factorization.

1447993899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14626218 (or 14626215 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 1447993899 is about 38052.5150154362. The cubic root of 1447993899 is about 1131.3289762471.

The spelling of 1447993899 in words is "one billion, four hundred forty-seven million, nine hundred ninety-three thousand, eight hundred ninety-nine".