1447979317 has 8 divisors (see below), whose sum is σ = 1458731840. Its totient is φ = 1437242400.

The previous prime is 1447979311. The next prime is 1447979327. The reversal of 1447979317 is 7139797441.

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 1447979317 - 2¹⁹ = 1447455029 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 (1447979311) 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, 235393 + ... + 241465.

It is an arithmetic number, because the mean of its divisors is an integer number (182341480).

Almost surely, 2^1447979317 is an apocalyptic number.

It is an amenable number.

1447979317 is a deficient number, since it is larger than the sum of its proper divisors (10752523).

1447979317 is a wasteful number, since it uses less digits than its factorization.

1447979317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803.

The product of its digits is 1333584, while the sum is 52.

The square root of 1447979317 is about 38052.3234113240. The cubic root of 1447979317 is about 1131.3251785574.

The spelling of 1447979317 in words is "one billion, four hundred forty-seven million, nine hundred seventy-nine thousand, three hundred seventeen".