870983887 has 2 divisors, whose sum is σ = 870983888. Its totient is φ = 870983886.

The previous prime is 870983879. The next prime is 870983891. The reversal of 870983887 is 788389078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870983887 - 2³ = 870983879 is a prime.

It is a super-2 number, since 2×870983887² = 1517225862827257538, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870984887) 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, 435491943 + 435491944.

It is an arithmetic number, because the mean of its divisors is an integer number (435491944).

Almost surely, 2^870983887 is an apocalyptic number.

870983887 is a deficient number, since it is larger than the sum of its proper divisors (1).

870983887 is an equidigital number, since it uses as much as digits as its factorization.

870983887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The square root of 870983887 is about 29512.4361413964. The cubic root of 870983887 is about 955.0000043858. Note that the first 5 decimals are identical.

The spelling of 870983887 in words is "eight hundred seventy million, nine hundred eighty-three thousand, eight hundred eighty-seven".