1742047 has 4 divisors (see below), whose sum is σ = 1744720. Its totient is φ = 1739376.

The previous prime is 1742033. The next prime is 1742051. The reversal of 1742047 is 7402471.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1742047 - 2¹⁹ = 1217759 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1742017) 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 3 ways as a sum of consecutive naturals, for example, 358 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (436180).

2^1742047 is an apocalyptic number.

1742047 is a deficient number, since it is larger than the sum of its proper divisors (2673).

1742047 is a wasteful number, since it uses less digits than its factorization.

1742047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 1742047 is about 1319.8662811058. The cubic root of 1742047 is about 120.3242849085.

The spelling of 1742047 in words is "one million, seven hundred forty-two thousand, forty-seven".