1247446 has 4 divisors (see below), whose sum is σ = 1871172. Its totient is φ = 623722.

The previous prime is 1247429. The next prime is 1247447. The reversal of 1247446 is 6447421.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1247446² = 3112243045832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311860 + ... + 311863.

It is an arithmetic number, because the mean of its divisors is an integer number (467793).

2^1247446 is an apocalyptic number.

1247446 is a deficient number, since it is larger than the sum of its proper divisors (623726).

1247446 is an equidigital number, since it uses as much as digits as its factorization.

1247446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623725.

The product of its digits is 5376, while the sum is 28.

The square root of 1247446 is about 1116.8912212029. The cubic root of 1247446 is about 107.6483187952.

It can be divided in two parts, 124744 and 6, that added together give a triangular number (124750 = T₄₉₉).

The spelling of 1247446 in words is "one million, two hundred forty-seven thousand, four hundred forty-six".