88978717 has 2 divisors, whose sum is σ = 88978718. Its totient is φ = 88978716.

The previous prime is 88978639. The next prime is 88978723. The reversal of 88978717 is 71787988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88096996 + 881721 = 9386^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 88978717 - 2²³ = 80590109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88478717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44489358 + 44489359.

It is an arithmetic number, because the mean of its divisors is an integer number (44489359).

Almost surely, 2^88978717 is an apocalyptic number.

It is an amenable number.

88978717 is a deficient number, since it is larger than the sum of its proper divisors (1).

88978717 is an equidigital number, since it uses as much as digits as its factorization.

88978717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 55.

The square root of 88978717 is about 9432.8530678687. The cubic root of 88978717 is about 446.4389175190.

The spelling of 88978717 in words is "eighty-eight million, nine hundred seventy-eight thousand, seven hundred seventeen".