7906706 has 4 divisors (see below), whose sum is σ = 11860062. Its totient is φ = 3953352.

The previous prime is 7906697. The next prime is 7906709. The reversal of 7906706 is 6076097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6076097 = 239 ⋅25423.

It can be written as a sum of positive squares in only one way, i.e., 4239481 + 3667225 = 2059^2 + 1915^2 .

It is not an unprimeable number, because it can be changed into a prime (7906709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1976675 + ... + 1976678.

Almost surely, 2^7906706 is an apocalyptic number.

7906706 is a deficient number, since it is larger than the sum of its proper divisors (3953356).

7906706 is a wasteful number, since it uses less digits than its factorization.

7906706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953355.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 7906706 is about 2811.8865553219. The cubic root of 7906706 is about 199.2195081242.

Subtracting from 7906706 its reverse (6076097), we obtain a square (1830609 = 1353²).

The spelling of 7906706 in words is "seven million, nine hundred six thousand, seven hundred six".