245660685 has 8 divisors (see below), whose sum is σ = 393057120. Its totient is φ = 131019024.

The previous prime is 245660669. The next prime is 245660689. The reversal of 245660685 is 586066542.

245660685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 245660685 - 2⁴ = 245660669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245660689) 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, 8188675 + ... + 8188704.

It is an arithmetic number, because the mean of its divisors is an integer number (49132140).

Almost surely, 2^245660685 is an apocalyptic number.

It is an amenable number.

245660685 is a deficient number, since it is larger than the sum of its proper divisors (147396435).

245660685 is a wasteful number, since it uses less digits than its factorization.

245660685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377387.

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 245660685 is about 15673.5664416239. The cubic root of 245660685 is about 626.2944351162.

The spelling of 245660685 in words is "two hundred forty-five million, six hundred sixty thousand, six hundred eighty-five".