98617643 has 4 divisors (see below), whose sum is σ = 98637600. Its totient is φ = 98597688.

The previous prime is 98617637. The next prime is 98617709. The reversal of 98617643 is 34671689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34671689 = 13 ⋅2667053.

It is a cyclic number.

It is not a de Polignac number, because 98617643 - 2¹⁰ = 98616619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98617594 and 98617603.

It is not an unprimeable number, because it can be changed into a prime (98617613) 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, 3533 + ... + 14481.

It is an arithmetic number, because the mean of its divisors is an integer number (24659400).

Almost surely, 2^98617643 is an apocalyptic number.

98617643 is a deficient number, since it is larger than the sum of its proper divisors (19957).

98617643 is a wasteful number, since it uses less digits than its factorization.

98617643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19956.

The product of its digits is 217728, while the sum is 44.

The square root of 98617643 is about 9930.6416207615. The cubic root of 98617643 is about 462.0101741855.

The spelling of 98617643 in words is "ninety-eight million, six hundred seventeen thousand, six hundred forty-three".