870749323 has 2 divisors, whose sum is σ = 870749324. Its totient is φ = 870749322.

The previous prime is 870749311. The next prime is 870749357. The reversal of 870749323 is 323947078.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870749323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 870749323.

It is not a weakly prime, because it can be changed into another prime (870749303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435374661 + 435374662.

It is an arithmetic number, because the mean of its divisors is an integer number (435374662).

Almost surely, 2^870749323 is an apocalyptic number.

870749323 is a deficient number, since it is larger than the sum of its proper divisors (1).

870749323 is an equidigital number, since it uses as much as digits as its factorization.

870749323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 870749323 is about 29508.4618880754. The cubic root of 870749323 is about 954.9142665834.

The spelling of 870749323 in words is "eight hundred seventy million, seven hundred forty-nine thousand, three hundred twenty-three".