8961967 has 4 divisors (see below), whose sum is σ = 10242256. Its totient is φ = 7681680.

The previous prime is 8961961. The next prime is 8961983. The reversal of 8961967 is 7691698.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8961967 - 2³ = 8961959 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 (8961961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640134 + ... + 640147.

It is an arithmetic number, because the mean of its divisors is an integer number (2560564).

Almost surely, 2^8961967 is an apocalyptic number.

8961967 is a deficient number, since it is larger than the sum of its proper divisors (1280289).

8961967 is a wasteful number, since it uses less digits than its factorization.

8961967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280288.

The product of its digits is 163296, while the sum is 46.

The square root of 8961967 is about 2993.6544556779. The cubic root of 8961967 is about 207.7149618249.

The spelling of 8961967 in words is "eight million, nine hundred sixty-one thousand, nine hundred sixty-seven".