98435257 has 16 divisors (see below), whose sum is σ = 106272000. Its totient is φ = 90889344.

The previous prime is 98435231. The next prime is 98435263. The reversal of 98435257 is 75253489.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98435257 is a prime.

It is a Duffinian number.

Its product of digits (302400) is a multiple of the sum of its prime divisors (720).

It is not an unprimeable number, because it can be changed into a prime (98435297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240469 + ... + 240877.

It is an arithmetic number, because the mean of its divisors is an integer number (6642000).

Almost surely, 2^98435257 is an apocalyptic number.

It is an amenable number.

98435257 is a deficient number, since it is larger than the sum of its proper divisors (7836743).

98435257 is a wasteful number, since it uses less digits than its factorization.

98435257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its digits is 302400, while the sum is 43.

The square root of 98435257 is about 9921.4543792732. The cubic root of 98435257 is about 461.7251805971.

The spelling of 98435257 in words is "ninety-eight million, four hundred thirty-five thousand, two hundred fifty-seven".