98401643 has 4 divisors (see below), whose sum is σ = 99272568. Its totient is φ = 97530720.

The previous prime is 98401637. The next prime is 98401651. The reversal of 98401643 is 34610489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34610489 = 281 ⋅123169.

It is a cyclic number.

It is not a de Polignac number, because 98401643 - 2⁶ = 98401579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98401663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435293 + ... + 435518.

It is an arithmetic number, because the mean of its divisors is an integer number (24818142).

Almost surely, 2^98401643 is an apocalyptic number.

98401643 is a deficient number, since it is larger than the sum of its proper divisors (870925).

98401643 is a wasteful number, since it uses less digits than its factorization.

98401643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870924.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 98401643 is about 9919.7602289571. The cubic root of 98401643 is about 461.6726174618.

The spelling of 98401643 in words is "ninety-eight million, four hundred one thousand, six hundred forty-three".