2006407 has 4 divisors (see below), whose sum is σ = 2160760. Its totient is φ = 1852056.

The previous prime is 2006393. The next prime is 2006429. The reversal of 2006407 is 7046002.

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-2006407 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77157 + ... + 77182.

It is an arithmetic number, because the mean of its divisors is an integer number (540190).

2^2006407 is an apocalyptic number.

2006407 is a deficient number, since it is larger than the sum of its proper divisors (154353).

2006407 is a wasteful number, since it uses less digits than its factorization.

2006407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154352.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2006407 is about 1416.4769676913. The cubic root of 2006407 is about 126.1265001493.

The spelling of 2006407 in words is "two million, six thousand, four hundred seven".