245717705 has 8 divisors (see below), whose sum is σ = 296037504. Its totient is φ = 195790000.

The previous prime is 245717701. The next prime is 245717707. The reversal of 245717705 is 507717542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245717705 - 2² = 245717701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245717701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96641 + ... + 99150.

It is an arithmetic number, because the mean of its divisors is an integer number (37004688).

Almost surely, 2^245717705 is an apocalyptic number.

It is an amenable number.

245717705 is a deficient number, since it is larger than the sum of its proper divisors (50319799).

245717705 is a wasteful number, since it uses less digits than its factorization.

245717705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196047.

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 245717705 is about 15675.3853222178. The cubic root of 245717705 is about 626.3428875118.

The spelling of 245717705 in words is "two hundred forty-five million, seven hundred seventeen thousand, seven hundred five".