88195813 has 8 divisors (see below), whose sum is σ = 94915800. Its totient is φ = 81646080.

The previous prime is 88195801. The next prime is 88195817. The reversal of 88195813 is 31859188.

It can be written as a sum of positive squares in 4 ways, for example, as 4418404 + 83777409 = 2102^2 + 9153^2 .

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 88195813 - 2⁹ = 88195301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88195813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88195817) 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, 41488 + ... + 43561.

It is an arithmetic number, because the mean of its divisors is an integer number (11864475).

Almost surely, 2^88195813 is an apocalyptic number.

It is an amenable number.

88195813 is a deficient number, since it is larger than the sum of its proper divisors (6719987).

88195813 is a wasteful number, since it uses less digits than its factorization.

88195813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85127.

The product of its digits is 69120, while the sum is 43.

The square root of 88195813 is about 9391.2625881721. The cubic root of 88195813 is about 445.1256859977.

The spelling of 88195813 in words is "eighty-eight million, one hundred ninety-five thousand, eight hundred thirteen".