870733007321 has 2 divisors, whose sum is σ = 870733007322. Its totient is φ = 870733007320.

The previous prime is 870733007273. The next prime is 870733007327. The reversal of 870733007321 is 123700337078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851080051600 + 19652955721 = 922540^2 + 140189^2 .

It is a cyclic number.

It is not a de Polignac number, because 870733007321 - 2²⁶ = 870665898457 is a prime.

It is a super-3 number, since 3×870733007321³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (870733007327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435366503660 + 435366503661.

It is an arithmetic number, because the mean of its divisors is an integer number (435366503661).

Almost surely, 2^870733007321 is an apocalyptic number.

It is an amenable number.

870733007321 is a deficient number, since it is larger than the sum of its proper divisors (1).

870733007321 is an equidigital number, since it uses as much as digits as its factorization.

870733007321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 41.

The spelling of 870733007321 in words is "eight hundred seventy billion, seven hundred thirty-three million, seven thousand, three hundred twenty-one".