7117906 has 4 divisors (see below), whose sum is σ = 10676862. Its totient is φ = 3558952.

The previous prime is 7117897. The next prime is 7117921. The reversal of 7117906 is 6097117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6097117 = 13 ⋅469009.

It can be written as a sum of positive squares in only one way, i.e., 6046681 + 1071225 = 2459^2 + 1035^2 .

It is an unprimeable number.

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, 1779475 + ... + 1779478.

Almost surely, 2^7117906 is an apocalyptic number.

7117906 is a deficient number, since it is larger than the sum of its proper divisors (3558956).

7117906 is a wasteful number, since it uses less digits than its factorization.

7117906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558955.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 7117906 is about 2667.9404041320. The cubic root of 7117906 is about 192.3611727443.

The spelling of 7117906 in words is "seven million, one hundred seventeen thousand, nine hundred six".