87704081 has 2 divisors, whose sum is σ = 87704082. Its totient is φ = 87704080.

The previous prime is 87704051. The next prime is 87704087. The reversal of 87704081 is 18040778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67092481 + 20611600 = 8191^2 + 4540^2 .

It is a cyclic number.

It is not a de Polignac number, because 87704081 - 2¹⁴ = 87687697 is a prime.

It is a super-2 number, since 2×87704081² = 15384011648109122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87704087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43852040 + 43852041.

It is an arithmetic number, because the mean of its divisors is an integer number (43852041).

Almost surely, 2^87704081 is an apocalyptic number.

It is an amenable number.

87704081 is a deficient number, since it is larger than the sum of its proper divisors (1).

87704081 is an equidigital number, since it uses as much as digits as its factorization.

87704081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 87704081 is about 9365.0457019707. The cubic root of 87704081 is about 444.2968839975.

The spelling of 87704081 in words is "eighty-seven million, seven hundred four thousand, eighty-one".