1608407 has 4 divisors (see below), whose sum is σ = 1693080. Its totient is φ = 1523736.

The previous prime is 1608401. The next prime is 1608433. The reversal of 1608407 is 7048061.

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

It is a cyclic number.

It is not a de Polignac number, because 1608407 - 2¹² = 1604311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42308 + ... + 42345.

It is an arithmetic number, because the mean of its divisors is an integer number (423270).

2^1608407 is an apocalyptic number.

1608407 is a deficient number, since it is larger than the sum of its proper divisors (84673).

1608407 is an equidigital number, since it uses as much as digits as its factorization.

1608407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84672.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1608407 is about 1268.2298687541. The cubic root of 1608407 is about 117.1652035922.

It can be divided in two parts, 1608 and 407, that multiplied together give a palindrome (654456).

The spelling of 1608407 in words is "one million, six hundred eight thousand, four hundred seven".