1226947 has 4 divisors (see below), whose sum is σ = 1236736. Its totient is φ = 1217160.

The previous prime is 1226899. The next prime is 1226959. The reversal of 1226947 is 7496221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7496221 = 227 ⋅33023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226947 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 2⁹ + 2¹⁷ + 6⁶ + 9² + 4¹⁰ + 7² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4704 + ... + 4957.

It is an arithmetic number, because the mean of its divisors is an integer number (309184).

2^1226947 is an apocalyptic number.

1226947 is a deficient number, since it is larger than the sum of its proper divisors (9789).

1226947 is an equidigital number, since it uses as much as digits as its factorization.

1226947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9788.

The product of its digits is 6048, while the sum is 31.

The square root of 1226947 is about 1107.6763967874. The cubic root of 1226947 is about 107.0554055502.

It can be divided in two parts, 122694 and 7, that multiplied together give a palindrome (858858).

The spelling of 1226947 in words is "one million, two hundred twenty-six thousand, nine hundred forty-seven".