860570993 has 4 divisors (see below), whose sum is σ = 870240420. Its totient is φ = 850901568.

The previous prime is 860570989. The next prime is 860570999. The reversal of 860570993 is 399075068.

860570993 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 can be written as a sum of positive squares in 2 ways, for example, as 552814144 + 307756849 = 23512^2 + 17543^2 .

It is a cyclic number.

It is not a de Polignac number, because 860570993 - 2² = 860570989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860570999) 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, 4834580 + ... + 4834757.

It is an arithmetic number, because the mean of its divisors is an integer number (217560105).

Almost surely, 2^860570993 is an apocalyptic number.

It is an amenable number.

860570993 is a deficient number, since it is larger than the sum of its proper divisors (9669427).

860570993 is an equidigital number, since it uses as much as digits as its factorization.

860570993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669426.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 860570993 is about 29335.4903316785. The cubic root of 860570993 is about 951.1789584575.

The spelling of 860570993 in words is "eight hundred sixty million, five hundred seventy thousand, nine hundred ninety-three".