7947906949 has 8 divisors (see below), whose sum is σ = 8151272640. Its totient is φ = 7744994400.

The previous prime is 7947906931. The next prime is 7947906971. The reversal of 7947906949 is 9496097497.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7947906949 - 2⁵ = 7947906917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7947906349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77617 + ... + 148054.

It is an arithmetic number, because the mean of its divisors is an integer number (1018909080).

Almost surely, 2^7947906949 is an apocalyptic number.

It is an amenable number.

7947906949 is a deficient number, since it is larger than the sum of its proper divisors (203365691).

7947906949 is a wasteful number, since it uses less digits than its factorization.

7947906949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226571.

The product of its (nonzero) digits is 30862944, while the sum is 64.

The square root of 7947906949 is about 89151.0344808180. The cubic root of 7947906949 is about 1995.6494556606.

The spelling of 7947906949 in words is "seven billion, nine hundred forty-seven million, nine hundred six thousand, nine hundred forty-nine".