870642103 has 2 divisors, whose sum is σ = 870642104. Its totient is φ = 870642102.

The previous prime is 870641983. The next prime is 870642121. The reversal of 870642103 is 301246078.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870642103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870642163) 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, 435321051 + 435321052.

It is an arithmetic number, because the mean of its divisors is an integer number (435321052).

Almost surely, 2^870642103 is an apocalyptic number.

870642103 is a deficient number, since it is larger than the sum of its proper divisors (1).

870642103 is an equidigital number, since it uses as much as digits as its factorization.

870642103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 870642103 is about 29506.6450651374. The cubic root of 870642103 is about 954.8750704154.

The spelling of 870642103 in words is "eight hundred seventy million, six hundred forty-two thousand, one hundred three".