88117819 has 2 divisors, whose sum is σ = 88117820. Its totient is φ = 88117818.

The previous prime is 88117759. The next prime is 88117829. The reversal of 88117819 is 91871188.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88117819 - 2⁷ = 88117691 is a prime.

It is a super-3 number, since 3×88117819³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (88117829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44058909 + 44058910.

It is an arithmetic number, because the mean of its divisors is an integer number (44058910).

Almost surely, 2^88117819 is an apocalyptic number.

88117819 is a deficient number, since it is larger than the sum of its proper divisors (1).

88117819 is an equidigital number, since it uses as much as digits as its factorization.

88117819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 43.

The square root of 88117819 is about 9387.1091929305. The cubic root of 88117819 is about 444.9944349765.

The spelling of 88117819 in words is "eighty-eight million, one hundred seventeen thousand, eight hundred nineteen".