870464851 has 2 divisors, whose sum is σ = 870464852. Its totient is φ = 870464850.

The previous prime is 870464827. The next prime is 870464873. The reversal of 870464851 is 158464078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870464851 - 2⁹ = 870464339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870464798 and 870464807.

It is not a weakly prime, because it can be changed into another prime (870404851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435232425 + 435232426.

It is an arithmetic number, because the mean of its divisors is an integer number (435232426).

Almost surely, 2^870464851 is an apocalyptic number.

870464851 is a deficient number, since it is larger than the sum of its proper divisors (1).

870464851 is an equidigital number, since it uses as much as digits as its factorization.

870464851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 870464851 is about 29503.6413176408. The cubic root of 870464851 is about 954.8102657527.

The spelling of 870464851 in words is "eight hundred seventy million, four hundred sixty-four thousand, eight hundred fifty-one".