88709805 has 12 divisors (see below), whose sum is σ = 153763740. Its totient is φ = 47311872.

The previous prime is 88709783. The next prime is 88709807. The reversal of 88709805 is 50890788.

It can be written as a sum of positive squares in 2 ways, for example, as 35390601 + 53319204 = 5949^2 + 7302^2 .

It is not a de Polignac number, because 88709805 - 2⁸ = 88709549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1971329 = 88709805 / (8 + 8 + 7 + 0 + 9 + 8 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88709807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 985620 + ... + 985709.

It is an arithmetic number, because the mean of its divisors is an integer number (12813645).

Almost surely, 2^88709805 is an apocalyptic number.

It is an amenable number.

88709805 is a deficient number, since it is larger than the sum of its proper divisors (65053935).

88709805 is a wasteful number, since it uses less digits than its factorization.

88709805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971340 (or 1971337 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 88709805 is about 9418.5882700116. The cubic root of 88709805 is about 445.9887202467.

The spelling of 88709805 in words is "eighty-eight million, seven hundred nine thousand, eight hundred five".