98128550 has 24 divisors (see below), whose sum is σ = 196560336. Its totient is φ = 36231840.

The previous prime is 98128529. The next prime is 98128553. The reversal of 98128550 is 5582189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98128553) 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, 74834 + ... + 76133.

It is an arithmetic number, because the mean of its divisors is an integer number (8190014).

Almost surely, 2^98128550 is an apocalyptic number.

98128550 is an abundant number, since it is smaller than the sum of its proper divisors (98431786).

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

98128550 is a wasteful number, since it uses less digits than its factorization.

98128550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150992 (or 150987 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 98128550 is about 9905.9855642939. The cubic root of 98128550 is about 461.2451301009.

The spelling of 98128550 in words is "ninety-eight million, one hundred twenty-eight thousand, five hundred fifty".