4007906 has 12 divisors (see below), whose sum is σ = 6993558. Its totient is φ = 1717632.

The previous prime is 4007893. The next prime is 4007921. The reversal of 4007906 is 6097004.

It can be written as a sum of positive squares in only one way, i.e., 2706025 + 1301881 = 1645^2 + 1141^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20351 + ... + 20546.

Almost surely, 2^4007906 is an apocalyptic number.

4007906 is a deficient number, since it is larger than the sum of its proper divisors (2985652).

4007906 is a wasteful number, since it uses less digits than its factorization.

4007906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40913 (or 40906 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 4007906 is about 2001.9755243259. The cubic root of 4007906 is about 158.8446196421.

It can be divided in two parts, 4007 and 906, that added together give a cube (4913 = 17³).

The spelling of 4007906 in words is "four million, seven thousand, nine hundred six".