870075907 has 4 divisors (see below), whose sum is σ = 875413960. Its totient is φ = 864737856.

The previous prime is 870075887. The next prime is 870075967. The reversal of 870075907 is 709570078.

870075907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 870075907 - 2⁷ = 870075779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870075967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668782 + ... + 2669107.

It is an arithmetic number, because the mean of its divisors is an integer number (218853490).

Almost surely, 2^870075907 is an apocalyptic number.

870075907 is a deficient number, since it is larger than the sum of its proper divisors (5338053).

870075907 is a wasteful number, since it uses less digits than its factorization.

870075907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338052.

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 870075907 is about 29497.0491235988. The cubic root of 870075907 is about 954.6680340669.

The spelling of 870075907 in words is "eight hundred seventy million, seventy-five thousand, nine hundred seven".