88661523 has 4 divisors (see below), whose sum is σ = 118215368. Its totient is φ = 59107680.

The previous prime is 88661491. The next prime is 88661539. The reversal of 88661523 is 32516688.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 88661523 - 2⁵ = 88661491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88661723) 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, 14776918 + ... + 14776923.

It is an arithmetic number, because the mean of its divisors is an integer number (29553842).

Almost surely, 2^88661523 is an apocalyptic number.

88661523 is a deficient number, since it is larger than the sum of its proper divisors (29553845).

88661523 is a wasteful number, since it uses less digits than its factorization.

88661523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29553844.

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

The square root of 88661523 is about 9416.0247981831. The cubic root of 88661523 is about 445.9077929460.

The spelling of 88661523 in words is "eighty-eight million, six hundred sixty-one thousand, five hundred twenty-three".