99963648 has 108 divisors (see below), whose sum is σ = 295214920. Its totient is φ = 32514048.

The previous prime is 99963637. The next prime is 99963659. The reversal of 99963648 is 84636999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99963637) and next prime (99963659).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 99963594 and 99963603.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98568 + ... + 99576.

Almost surely, 2^99963648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99963648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147607460).

99963648 is an abundant number, since it is smaller than the sum of its proper divisors (195251272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99963648 is a wasteful number, since it uses less digits than its factorization.

99963648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1057 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 99963648 is about 9998.1822347865. The cubic root of 99963648 is about 464.1026328656.

The spelling of 99963648 in words is "ninety-nine million, nine hundred sixty-three thousand, six hundred forty-eight".