89887927428 has 72 divisors (see below), whose sum is σ = 251308338008. Its totient is φ = 26910309888.

The previous prime is 89887927403. The next prime is 89887927429. The reversal of 89887927428 is 82472978898.

It can be written as a sum of positive squares in 4 ways, for example, as 308634624 + 89579292804 = 17568^2 + 299298^2 .

It is not an unprimeable number, because it can be changed into a prime (89887927429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2578201 + ... + 2612832.

Almost surely, 2^89887927428 is an apocalyptic number.

It is an amenable number.

89887927428 is an abundant number, since it is smaller than the sum of its proper divisors (161420410580).

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

89887927428 is a wasteful number, since it uses less digits than its factorization.

89887927428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191093 (or 5191088 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 72.

The spelling of 89887927428 in words is "eighty-nine billion, eight hundred eighty-seven million, nine hundred twenty-seven thousand, four hundred twenty-eight".