98643438 has 24 divisors (see below), whose sum is σ = 214266000. Its totient is φ = 32798304.

The previous prime is 98643427. The next prime is 98643439. The reversal of 98643438 is 83434689.

It is a junction number, because it is equal to n+sod(n) for n = 98643393 and 98643402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98643439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 663 + ... + 14061.

It is an arithmetic number, because the mean of its divisors is an integer number (8927750).

Almost surely, 2^98643438 is an apocalyptic number.

98643438 is an abundant number, since it is smaller than the sum of its proper divisors (115622562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98643438 is a wasteful number, since it uses less digits than its factorization.

98643438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13816 (or 13813 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 98643438 is about 9931.9402938197. The cubic root of 98643438 is about 462.0504526899.

The spelling of 98643438 in words is "ninety-eight million, six hundred forty-three thousand, four hundred thirty-eight".