7847961 has 16 divisors (see below), whose sum is σ = 11493120. Its totient is φ = 4723920.

The previous prime is 7847941. The next prime is 7847977. The reversal of 7847961 is 1697487.

7847961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7847961 - 2¹¹ = 7845913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7847941) 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 in 15 ways as a sum of consecutive naturals, for example, 4650 + ... + 6108.

It is an arithmetic number, because the mean of its divisors is an integer number (718320).

Almost surely, 2^7847961 is an apocalyptic number.

It is an amenable number.

7847961 is a deficient number, since it is larger than the sum of its proper divisors (3645159).

7847961 is a wasteful number, since it uses less digits than its factorization.

7847961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636.

The product of its digits is 84672, while the sum is 42.

The square root of 7847961 is about 2801.4212464390. The cubic root of 7847961 is about 198.7248961608.

The spelling of 7847961 in words is "seven million, eight hundred forty-seven thousand, nine hundred sixty-one".