1347247 has 4 divisors (see below), whose sum is σ = 1469736. Its totient is φ = 1224760.

The previous prime is 1347223. The next prime is 1347263. The reversal of 1347247 is 7427431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7427431 = 11 ⋅675221.

It is a cyclic number.

It is not a de Polignac number, because 1347247 - 2¹⁵ = 1314479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347277) 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, 61228 + ... + 61249.

It is an arithmetic number, because the mean of its divisors is an integer number (367434).

2^1347247 is an apocalyptic number.

1347247 is a deficient number, since it is larger than the sum of its proper divisors (122489).

1347247 is a wasteful number, since it uses less digits than its factorization.

1347247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122488.

The product of its digits is 4704, while the sum is 28.

The square root of 1347247 is about 1160.7096966942. The cubic root of 1347247 is about 110.4457668800.

It can be divided in two parts, 134 and 7247, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 1347247 in words is "one million, three hundred forty-seven thousand, two hundred forty-seven".