88315709 has 2 divisors, whose sum is σ = 88315710. Its totient is φ = 88315708.

The previous prime is 88315651. The next prime is 88315729. The reversal of 88315709 is 90751388.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88303609 + 12100 = 9397^2 + 110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88315709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88315729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44157854 + 44157855.

It is an arithmetic number, because the mean of its divisors is an integer number (44157855).

Almost surely, 2^88315709 is an apocalyptic number.

It is an amenable number.

88315709 is a deficient number, since it is larger than the sum of its proper divisors (1).

88315709 is an equidigital number, since it uses as much as digits as its factorization.

88315709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 88315709 is about 9397.6438004427. The cubic root of 88315709 is about 445.3273003449.

The spelling of 88315709 in words is "eighty-eight million, three hundred fifteen thousand, seven hundred nine".