1247072 has 12 divisors (see below), whose sum is σ = 2455236. Its totient is φ = 623520.

The previous prime is 1247063. The next prime is 1247089. The reversal of 1247072 is 2707421.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19454 + ... + 19517.

It is an arithmetic number, because the mean of its divisors is an integer number (204603).

2^1247072 is an apocalyptic number.

It is an amenable number.

1247072 is a deficient number, since it is larger than the sum of its proper divisors (1208164).

1247072 is an equidigital number, since it uses as much as digits as its factorization.

1247072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38981 (or 38973 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 1247072 is about 1116.7237796340. The cubic root of 1247072 is about 107.6375596133.

The spelling of 1247072 in words is "one million, two hundred forty-seven thousand, seventy-two".