88840417 has 2 divisors, whose sum is σ = 88840418. Its totient is φ = 88840416.

The previous prime is 88840391. The next prime is 88840429. The reversal of 88840417 is 71404888.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84070561 + 4769856 = 9169^2 + 2184^2 .

It is a cyclic number.

It is not a de Polignac number, because 88840417 - 2⁷ = 88840289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88840417.

It is not a weakly prime, because it can be changed into another prime (88810417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44420208 + 44420209.

It is an arithmetic number, because the mean of its divisors is an integer number (44420209).

Almost surely, 2^88840417 is an apocalyptic number.

It is an amenable number.

88840417 is a deficient number, since it is larger than the sum of its proper divisors (1).

88840417 is an equidigital number, since it uses as much as digits as its factorization.

88840417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 88840417 is about 9425.5194551812. The cubic root of 88840417 is about 446.2074969392.

The spelling of 88840417 in words is "eighty-eight million, eight hundred forty thousand, four hundred seventeen".