98981644 has 6 divisors (see below), whose sum is σ = 173217884. Its totient is φ = 49490820.

The previous prime is 98981551. The next prime is 98981647. The reversal of 98981644 is 44618989.

It is not an unprimeable number, because it can be changed into a prime (98981647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12372702 + ... + 12372709.

Almost surely, 2^98981644 is an apocalyptic number.

It is an amenable number.

98981644 is a deficient number, since it is larger than the sum of its proper divisors (74236240).

98981644 is a wasteful number, since it uses less digits than its factorization.

98981644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24745415 (or 24745413 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 98981644 is about 9948.9519045978. The cubic root of 98981644 is about 462.5779078886.

The spelling of 98981644 in words is "ninety-eight million, nine hundred eighty-one thousand, six hundred forty-four".