7923661706 has 16 divisors (see below), whose sum is σ = 12359061000. Its totient is φ = 3805390848.

The previous prime is 7923661687. The next prime is 7923661727. The reversal of 7923661706 is 6071663297.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7350490225 + 573171481 = 85735^2 + 23941^2 .

It is a super-2 number, since 2×7923661706² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342731 + ... + 365118.

Almost surely, 2^7923661706 is an apocalyptic number.

7923661706 is a deficient number, since it is larger than the sum of its proper divisors (4435399294).

7923661706 is a wasteful number, since it uses less digits than its factorization.

7923661706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708073.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 7923661706 is about 89014.9521485014. The cubic root of 7923661706 is about 1993.6181330473.

The spelling of 7923661706 in words is "seven billion, nine hundred twenty-three million, six hundred sixty-one thousand, seven hundred six".