4006635 has 16 divisors (see below), whose sum is σ = 6462720. Its totient is φ = 2119520.

The previous prime is 4006633. The next prime is 4006637. The reversal of 4006635 is 5366004.

It is an interprime number because it is at equal distance from previous prime (4006633) and next prime (4006637).

It is not a de Polignac number, because 4006635 - 2¹ = 4006633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4006633) 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 15 ways as a sum of consecutive naturals, for example, 946 + ... + 2984.

It is an arithmetic number, because the mean of its divisors is an integer number (403920).

Almost surely, 2^4006635 is an apocalyptic number.

4006635 is a deficient number, since it is larger than the sum of its proper divisors (2456085).

4006635 is a wasteful number, since it uses less digits than its factorization.

4006635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 4006635 is about 2001.6580627070. The cubic root of 4006635 is about 158.8278267618.

The spelling of 4006635 in words is "four million, six thousand, six hundred thirty-five".