1047647 has 2 divisors, whose sum is σ = 1047648. Its totient is φ = 1047646.

The previous prime is 1047589. The next prime is 1047649. The reversal of 1047647 is 7467401.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7467401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1047647 - 2⁸ = 1047391 is a prime.

Together with 1047649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523823 + 523824.

It is an arithmetic number, because the mean of its divisors is an integer number (523824).

2^1047647 is an apocalyptic number.

1047647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047647 is an equidigital number, since it uses as much as digits as its factorization.

1047647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 1047647 is about 1023.5462862030. The cubic root of 1047647 is about 101.5636557028.

The spelling of 1047647 in words is "one million, forty-seven thousand, six hundred forty-seven".