98657813 has 4 divisors (see below), whose sum is σ = 99311328. Its totient is φ = 98004300.

The previous prime is 98657773. The next prime is 98657831. The reversal of 98657813 is 31875689.

It is a happy number.

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 98657813 - 2²⁴ = 81880597 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 (98657863) 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 3 ways as a sum of consecutive naturals, for example, 326531 + ... + 326832.

It is an arithmetic number, because the mean of its divisors is an integer number (24827832).

Almost surely, 2^98657813 is an apocalyptic number.

It is an amenable number.

98657813 is a deficient number, since it is larger than the sum of its proper divisors (653515).

98657813 is a wasteful number, since it uses less digits than its factorization.

98657813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653514.

The product of its digits is 362880, while the sum is 47.

The square root of 98657813 is about 9932.6639427698. The cubic root of 98657813 is about 462.0728959893.

The spelling of 98657813 in words is "ninety-eight million, six hundred fifty-seven thousand, eight hundred thirteen".