87705701 has 2 divisors, whose sum is σ = 87705702. Its totient is φ = 87705700.

The previous prime is 87705697. The next prime is 87705707. The reversal of 87705701 is 10750778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51825601 + 35880100 = 7199^2 + 5990^2 .

It is a cyclic number.

It is not a de Polignac number, because 87705701 - 2² = 87705697 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 (87705707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43852850 + 43852851.

It is an arithmetic number, because the mean of its divisors is an integer number (43852851).

Almost surely, 2^87705701 is an apocalyptic number.

It is an amenable number.

87705701 is a deficient number, since it is larger than the sum of its proper divisors (1).

87705701 is an equidigital number, since it uses as much as digits as its factorization.

87705701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13720, while the sum is 35.

The square root of 87705701 is about 9365.1321934076. The cubic root of 87705701 is about 444.2996195469.

The spelling of 87705701 in words is "eighty-seven million, seven hundred five thousand, seven hundred one".