1606407 has 8 divisors (see below), whose sum is σ = 2336640. Its totient is φ = 973560.

The previous prime is 1606403. The next prime is 1606427. The reversal of 1606407 is 7046061.

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

It is not a de Polignac number, because 1606407 - 2² = 1606403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24307 + ... + 24372.

It is an arithmetic number, because the mean of its divisors is an integer number (292080).

2^1606407 is an apocalyptic number.

1606407 is a deficient number, since it is larger than the sum of its proper divisors (730233).

1606407 is a wasteful number, since it uses less digits than its factorization.

1606407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48693.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1606407 is about 1267.4411228929. The cubic root of 1606407 is about 117.1166197860.

The spelling of 1606407 in words is "one million, six hundred six thousand, four hundred seven".