98057509 has 4 divisors (see below), whose sum is σ = 106971840. Its totient is φ = 89143180.

The previous prime is 98057489. The next prime is 98057521. The reversal of 98057509 is 90575089.

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 98057509 - 2²⁵ = 64503077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98057209) 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, 4457149 + ... + 4457170.

It is an arithmetic number, because the mean of its divisors is an integer number (26742960).

Almost surely, 2^98057509 is an apocalyptic number.

It is an amenable number.

98057509 is a deficient number, since it is larger than the sum of its proper divisors (8914331).

98057509 is a wasteful number, since it uses less digits than its factorization.

98057509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8914330.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 98057509 is about 9902.3991537405. The cubic root of 98057509 is about 461.1337957819.

The spelling of 98057509 in words is "ninety-eight million, fifty-seven thousand, five hundred nine".