1406065 has 8 divisors (see below), whose sum is σ = 1745640. Its totient is φ = 1085952.

The previous prime is 1406051. The next prime is 1406071. The reversal of 1406065 is 5606041.

It can be written as a sum of positive squares in 4 ways, for example, as 20736 + 1385329 = 144^2 + 1177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1406065 - 2⁵ = 1406033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 4993.

It is an arithmetic number, because the mean of its divisors is an integer number (218205).

2^1406065 is an apocalyptic number.

It is an amenable number.

1406065 is a deficient number, since it is larger than the sum of its proper divisors (339575).

1406065 is an equidigital number, since it uses as much as digits as its factorization.

1406065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9731.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1406065 is about 1185.7761171486. The cubic root of 1406065 is about 112.0302055010.

The spelling of 1406065 in words is "one million, four hundred six thousand, sixty-five".