1247473 has 8 divisors (see below), whose sum is σ = 1298528. Its totient is φ = 1197504.

The previous prime is 1247459. The next prime is 1247479. The reversal of 1247473 is 3747421.

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 1247473 - 2⁹ = 1246961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247479) 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, 2665 + ... + 3097.

It is an arithmetic number, because the mean of its divisors is an integer number (162316).

2^1247473 is an apocalyptic number.

It is an amenable number.

1247473 is a deficient number, since it is larger than the sum of its proper divisors (51055).

1247473 is an equidigital number, since it uses as much as digits as its factorization.

1247473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543.

The product of its digits is 4704, while the sum is 28.

The square root of 1247473 is about 1116.9033082590. The cubic root of 1247473 is about 107.6490954444.

It can be divided in two parts, 124747 and 3, that added together give a triangular number (124750 = T₄₉₉).

The spelling of 1247473 in words is "one million, two hundred forty-seven thousand, four hundred seventy-three".