98789906 has 4 divisors (see below), whose sum is σ = 148184862. Its totient is φ = 49394952.

The previous prime is 98789893. The next prime is 98789909. The reversal of 98789906 is 60998789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60998789 = 3361 ⋅18149.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 27133681 = 8465^2 + 5209^2 .

It is not an unprimeable number, because it can be changed into a prime (98789909) 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 as a sum of consecutive naturals, namely, 24697475 + ... + 24697478.

Almost surely, 2^98789906 is an apocalyptic number.

98789906 is a deficient number, since it is larger than the sum of its proper divisors (49394956).

98789906 is a wasteful number, since it uses less digits than its factorization.

98789906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49394955.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The square root of 98789906 is about 9939.3111431326. The cubic root of 98789906 is about 462.2790272383.

The spelling of 98789906 in words is "ninety-eight million, seven hundred eighty-nine thousand, nine hundred six".