8691964 has 36 divisors (see below), whose sum is σ = 16538704. Its totient is φ = 3995136.

The previous prime is 8691961. The next prime is 8691971. The reversal of 8691964 is 4691968.

It is a self number, because there is not a number n which added to its sum of digits gives 8691964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8691961) 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, 84337 + ... + 84439.

Almost surely, 2^8691964 is an apocalyptic number.

It is an amenable number.

8691964 is a deficient number, since it is larger than the sum of its proper divisors (7846740).

8691964 is a wasteful number, since it uses less digits than its factorization.

8691964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 195 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 8691964 is about 2948.2136964610. The cubic root of 8691964 is about 205.6076675061.

The spelling of 8691964 in words is "eight million, six hundred ninety-one thousand, nine hundred sixty-four".