1705427 has 4 divisors (see below), whose sum is σ = 1779600. Its totient is φ = 1631256.

The previous prime is 1705409. The next prime is 1705433. The reversal of 1705427 is 7245071.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1705427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1705396 and 1705405.

It is not an unprimeable number, because it can be changed into a prime (1705447) 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, 37052 + ... + 37097.

It is an arithmetic number, because the mean of its divisors is an integer number (444900).

2^1705427 is an apocalyptic number.

1705427 is a deficient number, since it is larger than the sum of its proper divisors (74173).

1705427 is an equidigital number, since it uses as much as digits as its factorization.

1705427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74172.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 1705427 is about 1305.9199822347. The cubic root of 1705427 is about 119.4751849409.

The spelling of 1705427 in words is "one million, seven hundred five thousand, four hundred twenty-seven".