7873567428 has 24 divisors (see below), whose sum is σ = 18718293888. Its totient is φ = 2575002976.

The previous prime is 7873567423. The next prime is 7873567433. The reversal of 7873567428 is 8247653787.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7873567423) and next prime (7873567433).

It is not an unprimeable number, because it can be changed into a prime (7873567423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6189276 + ... + 6190547.

It is an arithmetic number, because the mean of its divisors is an integer number (779928912).

Almost surely, 2^7873567428 is an apocalyptic number.

It is an amenable number.

7873567428 is an abundant number, since it is smaller than the sum of its proper divisors (10844726460).

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

7873567428 is a wasteful number, since it uses less digits than its factorization.

7873567428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12379883 (or 12379881 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 57.

The square root of 7873567428 is about 88733.1247505688. The cubic root of 7873567428 is about 1989.4079556597.

The spelling of 7873567428 in words is "seven billion, eight hundred seventy-three million, five hundred sixty-seven thousand, four hundred twenty-eight".