88111669 has 2 divisors, whose sum is σ = 88111670. Its totient is φ = 88111668.

The previous prime is 88111651. The next prime is 88111717. The reversal of 88111669 is 96611188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81685444 + 6426225 = 9038^2 + 2535^2 .

It is a cyclic number.

It is not a de Polignac number, because 88111669 - 2²¹ = 86014517 is a prime.

It is a super-2 number, since 2×88111669² = 15527332427931122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88111169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44055834 + 44055835.

It is an arithmetic number, because the mean of its divisors is an integer number (44055835).

Almost surely, 2^88111669 is an apocalyptic number.

It is an amenable number.

88111669 is a deficient number, since it is larger than the sum of its proper divisors (1).

88111669 is an equidigital number, since it uses as much as digits as its factorization.

88111669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 40.

The square root of 88111669 is about 9386.7816103284. The cubic root of 88111669 is about 444.9840822485.

The spelling of 88111669 in words is "eighty-eight million, one hundred eleven thousand, six hundred sixty-nine".