1706401 has 4 divisors (see below), whose sum is σ = 1723072. Its totient is φ = 1689732.

The previous prime is 1706399. The next prime is 1706417. The reversal of 1706401 is 1046071.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1706401 - 2¹ = 1706399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1706491) 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, 8181 + ... + 8386.

It is an arithmetic number, because the mean of its divisors is an integer number (430768).

2^1706401 is an apocalyptic number.

It is an amenable number.

1706401 is a deficient number, since it is larger than the sum of its proper divisors (16671).

1706401 is a wasteful number, since it uses less digits than its factorization.

1706401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16670.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1706401 is about 1306.2928461873. The cubic root of 1706401 is about 119.4979254205.

The spelling of 1706401 in words is "one million, seven hundred six thousand, four hundred one".