1447748993 has 4 divisors (see below), whose sum is σ = 1451782080. Its totient is φ = 1443715908.

The previous prime is 1447748963. The next prime is 1447748999. The reversal of 1447748993 is 3998477441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1447748993 - 2⁸ = 1447748737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1447748999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016005 + ... + 2016722.

It is an arithmetic number, because the mean of its divisors is an integer number (362945520).

Almost surely, 2^1447748993 is an apocalyptic number.

It is an amenable number.

1447748993 is a deficient number, since it is larger than the sum of its proper divisors (4033087).

1447748993 is an equidigital number, since it uses as much as digits as its factorization.

1447748993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033086.

The product of its digits is 6096384, while the sum is 56.

The square root of 1447748993 is about 38049.2968791803. The cubic root of 1447748993 is about 1131.2651903254.

The spelling of 1447748993 in words is "one billion, four hundred forty-seven million, seven hundred forty-eight thousand, nine hundred ninety-three".