98666644 has 12 divisors (see below), whose sum is σ = 175593600. Its totient is φ = 48497048.

The previous prime is 98666629. The next prime is 98666647. The reversal of 98666644 is 44666689.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98666647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208804 + ... + 209275.

It is an arithmetic number, because the mean of its divisors is an integer number (14632800).

Almost surely, 2^98666644 is an apocalyptic number.

It is an amenable number.

98666644 is a deficient number, since it is larger than the sum of its proper divisors (76926956).

98666644 is a wasteful number, since it uses less digits than its factorization.

98666644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418142 (or 418140 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The square root of 98666644 is about 9933.1084762022. The cubic root of 98666644 is about 462.0866825102.

The spelling of 98666644 in words is "ninety-eight million, six hundred sixty-six thousand, six hundred forty-four".