8767609428 has 12 divisors (see below), whose sum is σ = 20457755360. Its totient is φ = 2922536472.

The previous prime is 8767609421. The next prime is 8767609471. The reversal of 8767609428 is 8249067678.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8767609421) 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, 365317048 + ... + 365317071.

Almost surely, 2^8767609428 is an apocalyptic number.

It is an amenable number.

8767609428 is an abundant number, since it is smaller than the sum of its proper divisors (11690145932).

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

8767609428 is a wasteful number, since it uses less digits than its factorization.

8767609428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730634126 (or 730634124 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The square root of 8767609428 is about 93635.5137114119. The cubic root of 8767609428 is about 2062.0240755473.

The spelling of 8767609428 in words is "eight billion, seven hundred sixty-seven million, six hundred nine thousand, four hundred twenty-eight".