88198561 has 8 divisors (see below), whose sum is σ = 96307200. Its totient is φ = 80105040.

The previous prime is 88198493. The next prime is 88198571. The reversal of 88198561 is 16589188.

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 88198561 - 2⁷ = 88198433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88198571) 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, 10935 + ... + 17203.

It is an arithmetic number, because the mean of its divisors is an integer number (12038400).

Almost surely, 2^88198561 is an apocalyptic number.

It is an amenable number.

88198561 is a deficient number, since it is larger than the sum of its proper divisors (8108639).

88198561 is a wasteful number, since it uses less digits than its factorization.

88198561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559.

The product of its digits is 138240, while the sum is 46.

The square root of 88198561 is about 9391.4088932385. The cubic root of 88198561 is about 445.1303090164.

The spelling of 88198561 in words is "eighty-eight million, one hundred ninety-eight thousand, five hundred sixty-one".