7961961 has 12 divisors (see below), whose sum is σ = 12349392. Its totient is φ = 4549608.

The previous prime is 7961959. The next prime is 7961981. The reversal of 7961961 is 1691697.

It is not a de Polignac number, because 7961961 - 2¹ = 7961959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7961951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26935 + ... + 27228.

It is an arithmetic number, because the mean of its divisors is an integer number (1029116).

Almost surely, 2^7961961 is an apocalyptic number.

It is an amenable number.

7961961 is a deficient number, since it is larger than the sum of its proper divisors (4387431).

7961961 is a wasteful number, since it uses less digits than its factorization.

7961961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54180 (or 54173 counting only the distinct ones).

The product of its digits is 20412, while the sum is 39.

The square root of 7961961 is about 2821.6947035425. The cubic root of 7961961 is about 199.6825045833.

The spelling of 7961961 in words is "seven million, nine hundred sixty-one thousand, nine hundred sixty-one".