88644644 has 12 divisors (see below), whose sum is σ = 169230768. Its totient is φ = 40293000.

The previous prime is 88644607. The next prime is 88644653. The reversal of 88644644 is 44644688.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2014651 = 88644644 / (8 + 8 + 6 + 4 + 4 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 88644595 and 88644604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007282 + ... + 1007369.

It is an arithmetic number, because the mean of its divisors is an integer number (14102564).

Almost surely, 2^88644644 is an apocalyptic number.

It is an amenable number.

88644644 is a deficient number, since it is larger than the sum of its proper divisors (80586124).

88644644 is a wasteful number, since it uses less digits than its factorization.

88644644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014666 (or 2014664 counting only the distinct ones).

The product of its digits is 589824, while the sum is 44.

The square root of 88644644 is about 9415.1284643387. The cubic root of 88644644 is about 445.8794944799.

Adding to 88644644 its sum of digits (44), we get a palindrome (88644688).

The spelling of 88644644 in words is "eighty-eight million, six hundred forty-four thousand, six hundred forty-four".