1342647 has 6 divisors (see below), whose sum is σ = 1939392. Its totient is φ = 895092.

The previous prime is 1342633. The next prime is 1342651. The reversal of 1342647 is 7462431.

1342647 is a `hidden beast` number, since 13 + 4 + 2 + 647 = 666.

It is not a de Polignac number, because 1342647 - 2⁷ = 1342519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1342647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74583 + ... + 74600.

It is an arithmetic number, because the mean of its divisors is an integer number (323232).

2^1342647 is an apocalyptic number.

1342647 is a deficient number, since it is larger than the sum of its proper divisors (596745).

1342647 is a wasteful number, since it uses less digits than its factorization.

1342647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149189 (or 149186 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1342647 is about 1158.7264560715. The cubic root of 1342647 is about 110.3199226334.

The spelling of 1342647 in words is "one million, three hundred forty-two thousand, six hundred forty-seven".