98138743 has 8 divisors (see below), whose sum is σ = 103878320. Its totient is φ = 92456640.

The previous prime is 98138731. The next prime is 98138749. The reversal of 98138743 is 34783189.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98138743 - 2⁹ = 98138231 is a prime.

It is a super-3 number, since 3×98138743³ (a number of 25 digits) contains 333 as substring.

It is the 9907-th Hogben number.

It is a self number, because there is not a number n which added to its sum of digits gives 98138743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98138749) by changing a digit.

It is a nontrivial repunit in base 9906.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10830 + ... + 17707.

It is an arithmetic number, because the mean of its divisors is an integer number (12984790).

Almost surely, 2^98138743 is an apocalyptic number.

98138743 is a deficient number, since it is larger than the sum of its proper divisors (5739577).

98138743 is a wasteful number, since it uses less digits than its factorization.

98138743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28737.

The product of its digits is 145152, while the sum is 43.

The square root of 98138743 is about 9906.5000378539. The cubic root of 98138743 is about 461.2610999990.

The spelling of 98138743 in words is "ninety-eight million, one hundred thirty-eight thousand, seven hundred forty-three".