88606638 has 48 divisors (see below), whose sum is σ = 198362736. Its totient is φ = 28563840.

The previous prime is 88606631. The next prime is 88606643. The reversal of 88606638 is 83660688.

88606638 is a `hidden beast` number, since 8 + 8 + 6 + 0 + 6 + 638 = 666.

It is a super-2 number, since 2×88606638² = 15702272595326088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 88606593 and 88606602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88606631) 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, 154893 + ... + 155463.

It is an arithmetic number, because the mean of its divisors is an integer number (4132557).

Almost surely, 2^88606638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88606638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99181368).

88606638 is an abundant number, since it is smaller than the sum of its proper divisors (109756098).

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

88606638 is a wasteful number, since it uses less digits than its factorization.

88606638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 88606638 is about 9413.1099005589. The cubic root of 88606638 is about 445.8157624154.

The spelling of 88606638 in words is "eighty-eight million, six hundred six thousand, six hundred thirty-eight".