1447979 has 8 divisors (see below), whose sum is σ = 1610112. Its totient is φ = 1293120.

The previous prime is 1447973. The next prime is 1447981. The reversal of 1447979 is 9797441.

It is a happy number.

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 1447979 - 2²⁰ = 399403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1447973) 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, 1394 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (201264).

2^1447979 is an apocalyptic number.

1447979 is a deficient number, since it is larger than the sum of its proper divisors (162133).

1447979 is a wasteful number, since it uses less digits than its factorization.

1447979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637.

The product of its digits is 63504, while the sum is 41.

The square root of 1447979 is about 1203.3199906924. The cubic root of 1447979 is about 113.1325095999.

The spelling of 1447979 in words is "one million, four hundred forty-seven thousand, nine hundred seventy-nine".