870775387 has 2 divisors, whose sum is σ = 870775388. Its totient is φ = 870775386.

The previous prime is 870775357. The next prime is 870775417. The reversal of 870775387 is 783577078.

It is a balanced prime because it is at equal distance from previous prime (870775357) and next prime (870775417).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870775387 is a prime.

It is not a weakly prime, because it can be changed into another prime (870775307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435387693 + 435387694.

It is an arithmetic number, because the mean of its divisors is an integer number (435387694).

Almost surely, 2^870775387 is an apocalyptic number.

870775387 is a deficient number, since it is larger than the sum of its proper divisors (1).

870775387 is an equidigital number, since it uses as much as digits as its factorization.

870775387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304960, while the sum is 52.

The square root of 870775387 is about 29508.9035208020. The cubic root of 870775387 is about 954.9237942536.

The spelling of 870775387 in words is "eight hundred seventy million, seven hundred seventy-five thousand, three hundred eighty-seven".