870411523 has 2 divisors, whose sum is σ = 870411524. Its totient is φ = 870411522.

The previous prime is 870411511. The next prime is 870411557. The reversal of 870411523 is 325114078.

870411523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870411523 is a prime.

It is not a weakly prime, because it can be changed into another prime (870411323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435205761 + 435205762.

It is an arithmetic number, because the mean of its divisors is an integer number (435205762).

Almost surely, 2^870411523 is an apocalyptic number.

870411523 is a deficient number, since it is larger than the sum of its proper divisors (1).

870411523 is an equidigital number, since it uses as much as digits as its factorization.

870411523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 870411523 is about 29502.7375509460. The cubic root of 870411523 is about 954.7907669138.

The spelling of 870411523 in words is "eight hundred seventy million, four hundred eleven thousand, five hundred twenty-three".