88661532 has 12 divisors (see below), whose sum is σ = 206876936. Its totient is φ = 29553840.

The previous prime is 88661491. The next prime is 88661539. The reversal of 88661532 is 23516688.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88661539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3694219 + ... + 3694242.

Almost surely, 2^88661532 is an apocalyptic number.

It is an amenable number.

88661532 is an abundant number, since it is smaller than the sum of its proper divisors (118215404).

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

88661532 is a wasteful number, since it uses less digits than its factorization.

88661532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388468 (or 7388466 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 88661532 is about 9416.0252760918. The cubic root of 88661532 is about 445.9078080339.

The spelling of 88661532 in words is "eighty-eight million, six hundred sixty-one thousand, five hundred thirty-two".