88378817 has 2 divisors, whose sum is σ = 88378818. Its totient is φ = 88378816.

The previous prime is 88378751. The next prime is 88378819. The reversal of 88378817 is 71887388.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88378801 + 16 = 9401^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 88378817 - 2¹⁸ = 88116673 is a prime.

Together with 88378819, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88378819) 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, 44189408 + 44189409.

It is an arithmetic number, because the mean of its divisors is an integer number (44189409).

Almost surely, 2^88378817 is an apocalyptic number.

It is an amenable number.

88378817 is a deficient number, since it is larger than the sum of its proper divisors (1).

88378817 is an equidigital number, since it uses as much as digits as its factorization.

88378817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 50.

The square root of 88378817 is about 9401.0008509733. Note that the first 3 decimals coincide. The cubic root of 88378817 is about 445.4333480088.

The spelling of 88378817 in words is "eighty-eight million, three hundred seventy-eight thousand, eight hundred seventeen".