87708497 has 2 divisors, whose sum is σ = 87708498. Its totient is φ = 87708496.

The previous prime is 87708493. The next prime is 87708529. The reversal of 87708497 is 79480778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 398161 = 9344^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 87708497 - 2² = 87708493 is a prime.

It is not a weakly prime, because it can be changed into another prime (87708493) 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, 43854248 + 43854249.

It is an arithmetic number, because the mean of its divisors is an integer number (43854249).

Almost surely, 2^87708497 is an apocalyptic number.

It is an amenable number.

87708497 is a deficient number, since it is larger than the sum of its proper divisors (1).

87708497 is an equidigital number, since it uses as much as digits as its factorization.

87708497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 87708497 is about 9365.2814693420. The cubic root of 87708497 is about 444.3043408231.

The spelling of 87708497 in words is "eighty-seven million, seven hundred eight thousand, four hundred ninety-seven".