88608640 has 32 divisors (see below), whose sum is σ = 211831560. Its totient is φ = 35443200.

The previous prime is 88608631. The next prime is 88608643. The reversal of 88608640 is 4680688.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 88608593 and 88608602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88608643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68586 + ... + 69865.

Almost surely, 2^88608640 is an apocalyptic number.

88608640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88608640 is an abundant number, since it is smaller than the sum of its proper divisors (123222920).

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

88608640 is a wasteful number, since it uses less digits than its factorization.

88608640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138470 (or 138458 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 88608640 is about 9413.2162410092. The cubic root of 88608640 is about 445.8191200135.

The spelling of 88608640 in words is "eighty-eight million, six hundred eight thousand, six hundred forty".