88111779 has 16 divisors (see below), whose sum is σ = 135294720. Its totient is φ = 49963680.

The previous prime is 88111741. The next prime is 88111783. The reversal of 88111779 is 97711188.

It is a happy number.

It is not a de Polignac number, because 88111779 - 2⁷ = 88111651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88111779.

It is not an unprimeable number, because it can be changed into a prime (88111729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13264 + ... + 18765.

It is an arithmetic number, because the mean of its divisors is an integer number (8455920).

Almost surely, 2^88111779 is an apocalyptic number.

88111779 is a deficient number, since it is larger than the sum of its proper divisors (47182941).

88111779 is a wasteful number, since it uses less digits than its factorization.

88111779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32170.

The product of its digits is 28224, while the sum is 42.

The square root of 88111779 is about 9386.7874696299. The cubic root of 88111779 is about 444.9842674234.

The spelling of 88111779 in words is "eighty-eight million, one hundred eleven thousand, seven hundred seventy-nine".