7994906 has 4 divisors (see below), whose sum is σ = 11992362. Its totient is φ = 3997452.

The previous prime is 7994897. The next prime is 7994927. The reversal of 7994906 is 6094997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6094997 = 643 ⋅9479.

It can be written as a sum of positive squares in only one way, i.e., 4879681 + 3115225 = 2209^2 + 1765^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998725 + ... + 1998728.

Almost surely, 2^7994906 is an apocalyptic number.

7994906 is a deficient number, since it is larger than the sum of its proper divisors (3997456).

7994906 is a wasteful number, since it uses less digits than its factorization.

7994906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997455.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 7994906 is about 2827.5264808663. The cubic root of 7994906 is about 199.9575409868.

The spelling of 7994906 in words is "seven million, nine hundred ninety-four thousand, nine hundred six".