8961977 has 4 divisors (see below), whose sum is σ = 9433680. Its totient is φ = 8490276.

The previous prime is 8961961. The next prime is 8961983. The reversal of 8961977 is 7791698.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8961977 - 2⁴ = 8961961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8960977) 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, 235823 + ... + 235860.

It is an arithmetic number, because the mean of its divisors is an integer number (2358420).

Almost surely, 2^8961977 is an apocalyptic number.

It is an amenable number.

8961977 is a deficient number, since it is larger than the sum of its proper divisors (471703).

8961977 is a wasteful number, since it uses less digits than its factorization.

8961977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471702.

The product of its digits is 190512, while the sum is 47.

The square root of 8961977 is about 2993.6561258769. The cubic root of 8961977 is about 207.7150390828.

The spelling of 8961977 in words is "eight million, nine hundred sixty-one thousand, nine hundred seventy-seven".