98421789 has 8 divisors (see below), whose sum is σ = 138948480. Its totient is φ = 61754816.

The previous prime is 98421787. The next prime is 98421803. The reversal of 98421789 is 98712489.

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 98421789 - 2¹ = 98421787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98421781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964869 + ... + 964970.

It is an arithmetic number, because the mean of its divisors is an integer number (17368560).

Almost surely, 2^98421789 is an apocalyptic number.

It is an amenable number.

98421789 is a deficient number, since it is larger than the sum of its proper divisors (40526691).

98421789 is a wasteful number, since it uses less digits than its factorization.

98421789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929859.

The product of its digits is 290304, while the sum is 48.

The square root of 98421789 is about 9920.7756249197. The cubic root of 98421789 is about 461.7041217525.

The spelling of 98421789 in words is "ninety-eight million, four hundred twenty-one thousand, seven hundred eighty-nine".