98977989 has 8 divisors (see below), whose sum is σ = 143968032. Its totient is φ = 59986640.

The previous prime is 98977913. The next prime is 98978021.

98977989 is nontrivially palindromic in base 10.

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 98977989 - 2⁹ = 98977477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98977789) 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 7 ways as a sum of consecutive naturals, for example, 1499634 + ... + 1499699.

It is an arithmetic number, because the mean of its divisors is an integer number (17996004).

Almost surely, 2^98977989 is an apocalyptic number.

It is an amenable number.

98977989 is a deficient number, since it is larger than the sum of its proper divisors (44990043).

98977989 is a wasteful number, since it uses less digits than its factorization.

98977989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999347.

The product of its digits is 20575296, while the sum is 66.

The square root of 98977989 is about 9948.7682152114. The cubic root of 98977989 is about 462.5722140953.

The spelling of 98977989 in words is "ninety-eight million, nine hundred seventy-seven thousand, nine hundred eighty-nine".