870099619 has 2 divisors, whose sum is σ = 870099620. Its totient is φ = 870099618.

The previous prime is 870099617. The next prime is 870099641. The reversal of 870099619 is 916990078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 870099619 - 2¹ = 870099617 is a prime.

It is a super-2 number, since 2×870099619² = 1514146693967890322, which contains 22 as substring.

Together with 870099617, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (870099611) 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, 435049809 + 435049810.

It is an arithmetic number, because the mean of its divisors is an integer number (435049810).

Almost surely, 2^870099619 is an apocalyptic number.

870099619 is a deficient number, since it is larger than the sum of its proper divisors (1).

870099619 is an equidigital number, since it uses as much as digits as its factorization.

870099619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 870099619 is about 29497.4510593712. The cubic root of 870099619 is about 954.6767064454.

The spelling of 870099619 in words is "eight hundred seventy million, ninety-nine thousand, six hundred nineteen".