1247488 has 36 divisors (see below), whose sum is σ = 2722608. Its totient is φ = 565760.

The previous prime is 1247479. The next prime is 1247501. The reversal of 1247488 is 8847421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2595 + ... + 3037.

It is an arithmetic number, because the mean of its divisors is an integer number (75628).

2^1247488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1247488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361304).

1247488 is an abundant number, since it is smaller than the sum of its proper divisors (1475120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247488 is an equidigital number, since it uses as much as digits as its factorization.

1247488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 456 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 1247488 is about 1116.9100232337. The cubic root of 1247488 is about 107.6495269113.

The spelling of 1247488 in words is "one million, two hundred forty-seven thousand, four hundred eighty-eight".