88505661 has 8 divisors (see below), whose sum is σ = 118190880. Its totient is φ = 58912112.

The previous prime is 88505647. The next prime is 88505663. The reversal of 88505661 is 16650588.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88505661 - 2⁶ = 88505597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88505663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20631 + ... + 24548.

It is an arithmetic number, because the mean of its divisors is an integer number (14773860).

Almost surely, 2^88505661 is an apocalyptic number.

It is an amenable number.

88505661 is a deficient number, since it is larger than the sum of its proper divisors (29685219).

88505661 is a wasteful number, since it uses less digits than its factorization.

88505661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45835.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 88505661 is about 9407.7447350574. The cubic root of 88505661 is about 445.6463460272.

The spelling of 88505661 in words is "eighty-eight million, five hundred five thousand, six hundred sixty-one".