245779317 has 12 divisors (see below), whose sum is σ = 405731040. Its totient is φ = 140445288.

The previous prime is 245779301. The next prime is 245779327. The reversal of 245779317 is 713977542.

It is not a de Polignac number, because 245779317 - 2⁴ = 245779301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245779327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1950567 + ... + 1950692.

It is an arithmetic number, because the mean of its divisors is an integer number (33810920).

Almost surely, 2^245779317 is an apocalyptic number.

It is an amenable number.

245779317 is a deficient number, since it is larger than the sum of its proper divisors (159951723).

245779317 is a wasteful number, since it uses less digits than its factorization.

245779317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901272 (or 3901269 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 245779317 is about 15677.3504457864. The cubic root of 245779317 is about 626.3952335065.

The spelling of 245779317 in words is "two hundred forty-five million, seven hundred seventy-nine thousand, three hundred seventeen".