8651964 has 12 divisors (see below), whose sum is σ = 20187944. Its totient is φ = 2883984.

The previous prime is 8651959. The next prime is 8651977. The reversal of 8651964 is 4691568.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360487 + ... + 360510.

Almost surely, 2^8651964 is an apocalyptic number.

It is an amenable number.

8651964 is an abundant number, since it is smaller than the sum of its proper divisors (11535980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8651964 is a wasteful number, since it uses less digits than its factorization.

8651964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721004 (or 721002 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 8651964 is about 2941.4221050369. The cubic root of 8651964 is about 205.2917835851.

The spelling of 8651964 in words is "eight million, six hundred fifty-one thousand, nine hundred sixty-four".