7927906 has 12 divisors (see below), whose sum is σ = 13833558. Its totient is φ = 3397632.

The previous prime is 7927891. The next prime is 7927919. The reversal of 7927906 is 6097297.

It can be written as a sum of positive squares in only one way, i.e., 5175625 + 2752281 = 2275^2 + 1659^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40351 + ... + 40546.

Almost surely, 2^7927906 is an apocalyptic number.

7927906 is a deficient number, since it is larger than the sum of its proper divisors (5905652).

7927906 is a wasteful number, since it uses less digits than its factorization.

7927906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80913 (or 80906 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 7927906 is about 2815.6537429166. The cubic root of 7927906 is about 199.3974028737.

Subtracting from 7927906 its reverse (6097297), we obtain a square (1830609 = 1353²).

The spelling of 7927906 in words is "seven million, nine hundred twenty-seven thousand, nine hundred six".