2985257017 has 4 divisors (see below), whose sum is σ = 2987825040. Its totient is φ = 2982688996.

The previous prime is 2985256997. The next prime is 2985257039. The reversal of 2985257017 is 7107525892.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2985257017 - 2⁷ = 2985256889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2985257117) 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, 1282267 + ... + 1284592.

It is an arithmetic number, because the mean of its divisors is an integer number (746956260).

Almost surely, 2^2985257017 is an apocalyptic number.

It is an amenable number.

2985257017 is a deficient number, since it is larger than the sum of its proper divisors (2568023).

2985257017 is a wasteful number, since it uses less digits than its factorization.

2985257017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568022.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 2985257017 is about 54637.5055891098. The cubic root of 2985257017 is about 1439.8831272495.

The spelling of 2985257017 in words is "two billion, nine hundred eighty-five million, two hundred fifty-seven thousand, seventeen".