870411511 has 2 divisors, whose sum is σ = 870411512. Its totient is φ = 870411510.

The previous prime is 870411499. The next prime is 870411523. The reversal of 870411511 is 115114078.

It is a balanced prime because it is at equal distance from previous prime (870411499) and next prime (870411523).

It is a cyclic number.

It is not a de Polignac number, because 870411511 - 2⁷ = 870411383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 870411511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870411571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435205755 + 435205756.

It is an arithmetic number, because the mean of its divisors is an integer number (435205756).

Almost surely, 2^870411511 is an apocalyptic number.

870411511 is a deficient number, since it is larger than the sum of its proper divisors (1).

870411511 is an equidigital number, since it uses as much as digits as its factorization.

870411511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 28.

The square root of 870411511 is about 29502.7373475751. The cubic root of 870411511 is about 954.7907625261.

Adding to 870411511 its reverse (115114078), we get a palindrome (985525589).

The spelling of 870411511 in words is "eight hundred seventy million, four hundred eleven thousand, five hundred eleven".