88618521 has 16 divisors (see below), whose sum is σ = 119980224. Its totient is φ = 58174464.

The previous prime is 88618469. The next prime is 88618529. The reversal of 88618521 is 12581688.

It is not a de Polignac number, because 88618521 - 2⁷ = 88618393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88618521.

It is not an unprimeable number, because it can be changed into a prime (88618529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67150 + ... + 68456.

It is an arithmetic number, because the mean of its divisors is an integer number (7498764).

Almost surely, 2^88618521 is an apocalyptic number.

It is an amenable number.

88618521 is a deficient number, since it is larger than the sum of its proper divisors (31361703).

88618521 is a wasteful number, since it uses less digits than its factorization.

88618521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640.

The product of its digits is 30720, while the sum is 39.

The square root of 88618521 is about 9413.7410735584. The cubic root of 88618521 is about 445.8356909144.

The spelling of 88618521 in words is "eighty-eight million, six hundred eighteen thousand, five hundred twenty-one".