245998685 has 16 divisors (see below), whose sum is σ = 312263424. Its totient is φ = 185657472.

The previous prime is 245998679. The next prime is 245998691. The reversal of 245998685 is 586899542.

It is an interprime number because it is at equal distance from previous prime (245998679) and next prime (245998691).

It is not a de Polignac number, because 245998685 - 2⁸ = 245998429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245998685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6257 + ... + 23046.

It is an arithmetic number, because the mean of its divisors is an integer number (19516464).

Almost surely, 2^245998685 is an apocalyptic number.

It is an amenable number.

245998685 is a deficient number, since it is larger than the sum of its proper divisors (66264739).

245998685 is a wasteful number, since it uses less digits than its factorization.

245998685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29404.

The product of its digits is 6220800, while the sum is 56.

The square root of 245998685 is about 15684.3452206332. The cubic root of 245998685 is about 626.5815391320.

The spelling of 245998685 in words is "two hundred forty-five million, nine hundred ninety-eight thousand, six hundred eighty-five".