98643457 has 16 divisors (see below), whose sum is σ = 112988160. Its totient is φ = 85294800.

The previous prime is 98643439. The next prime is 98643487. The reversal of 98643457 is 75434689.

It is a cyclic number.

It is not a de Polignac number, because 98643457 - 2²³ = 90254849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98643427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17668 + ... + 22570.

It is an arithmetic number, because the mean of its divisors is an integer number (7061760).

Almost surely, 2^98643457 is an apocalyptic number.

It is an amenable number.

98643457 is a deficient number, since it is larger than the sum of its proper divisors (14344703).

98643457 is a wasteful number, since it uses less digits than its factorization.

98643457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004.

The product of its digits is 725760, while the sum is 46.

The square root of 98643457 is about 9931.9412503297. The cubic root of 98643457 is about 462.0504823556.

The spelling of 98643457 in words is "ninety-eight million, six hundred forty-three thousand, four hundred fifty-seven".