88648644 has 72 divisors (see below), whose sum is σ = 243038880. Its totient is φ = 25073664.

The previous prime is 88648603. The next prime is 88648649. The reversal of 88648644 is 44684688.

It is a junction number, because it is equal to n+sod(n) for n = 88648593 and 88648602.

It is not an unprimeable number, because it can be changed into a prime (88648649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62212 + ... + 63620.

It is an arithmetic number, because the mean of its divisors is an integer number (3375540).

Almost surely, 2^88648644 is an apocalyptic number.

88648644 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88648644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121519440).

88648644 is an abundant number, since it is smaller than the sum of its proper divisors (154390236).

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

88648644 is a wasteful number, since it uses less digits than its factorization.

88648644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1528 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 48.

The square root of 88648644 is about 9415.3408860221. The cubic root of 88648644 is about 445.8862009996.

The spelling of 88648644 in words is "eighty-eight million, six hundred forty-eight thousand, six hundred forty-four".