2860985947 has 4 divisors (see below), whose sum is σ = 3029279256. Its totient is φ = 2692692640.

The previous prime is 2860985921. The next prime is 2860985957. The reversal of 2860985947 is 7495890682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2860985947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2860985891 and 2860985900.

It is not an unprimeable number, because it can be changed into a prime (2860985957) 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 in 3 ways as a sum of consecutive naturals, for example, 84146629 + ... + 84146662.

It is an arithmetic number, because the mean of its divisors is an integer number (757319814).

Almost surely, 2^2860985947 is an apocalyptic number.

2860985947 is a deficient number, since it is larger than the sum of its proper divisors (168293309).

2860985947 is a wasteful number, since it uses less digits than its factorization.

2860985947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168293308.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The square root of 2860985947 is about 53488.1851159674. The cubic root of 2860985947 is about 1419.6193430176.

The spelling of 2860985947 in words is "two billion, eight hundred sixty million, nine hundred eighty-five thousand, nine hundred forty-seven".