1247706 has 12 divisors (see below), whose sum is σ = 2703402. Its totient is φ = 415896.

The previous prime is 1247699. The next prime is 1247737. The reversal of 1247706 is 6077421.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 164025 = 1041^2 + 405^2 .

It is an Ulam number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1247706.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34641 + ... + 34676.

2^1247706 is an apocalyptic number.

1247706 is an abundant number, since it is smaller than the sum of its proper divisors (1455696).

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

1247706 is a wasteful number, since it uses less digits than its factorization.

1247706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69325 (or 69322 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1247706 is about 1117.0076096428. The cubic root of 1247706 is about 107.6557971733.

It can be divided in two parts, 1247 and 706, that added together give a triangular number (1953 = T₆₂).

The spelling of 1247706 in words is "one million, two hundred forty-seven thousand, seven hundred six".