98640856 has 16 divisors (see below), whose sum is σ = 194686200. Its totient is φ = 46724544.

The previous prime is 98640833. The next prime is 98640863. The reversal of 98640856 is 65804689.

It is a congruent number.

It is an unprimeable number.

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, 324325 + ... + 324628.

Almost surely, 2^98640856 is an apocalyptic number.

It is an amenable number.

98640856 is a deficient number, since it is larger than the sum of its proper divisors (96045344).

98640856 is a wasteful number, since it uses less digits than its factorization.

98640856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648978 (or 648974 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 98640856 is about 9931.8103082973. The cubic root of 98640856 is about 462.0464212520.

The spelling of 98640856 in words is "ninety-eight million, six hundred forty thousand, eight hundred fifty-six".