98548561 has 4 divisors (see below), whose sum is σ = 100840432. Its totient is φ = 96256692.

The previous prime is 98548553. The next prime is 98548577. The reversal of 98548561 is 16584589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98548561 - 2³ = 98548553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98548661) 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, 1145871 + ... + 1145956.

It is an arithmetic number, because the mean of its divisors is an integer number (25210108).

Almost surely, 2^98548561 is an apocalyptic number.

It is an amenable number.

98548561 is a deficient number, since it is larger than the sum of its proper divisors (2291871).

98548561 is a wasteful number, since it uses less digits than its factorization.

98548561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291870.

The product of its digits is 345600, while the sum is 46.

The square root of 98548561 is about 9927.1627870203. The cubic root of 98548561 is about 461.9022690773.

The spelling of 98548561 in words is "ninety-eight million, five hundred forty-eight thousand, five hundred sixty-one".