245679 has 8 divisors (see below), whose sum is σ = 374400. Its totient is φ = 140376.

The previous prime is 245671. The next prime is 245681. The reversal of 245679 is 976542.

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

It is not a de Polignac number, because 245679 - 2³ = 245671 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4⁸ + 6⁶ + 5 + 7⁴ + 9 .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245671) 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, 5829 + ... + 5870.

It is an arithmetic number, because the mean of its divisors is an integer number (46800).

2²⁴⁵⁶⁷⁹ is an apocalyptic number.

245679 is a deficient number, since it is larger than the sum of its proper divisors (128721).

245679 is a wasteful number, since it uses less digits than its factorization.

245679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709.

The product of its digits is 15120, while the sum is 33.

The square root of 245679 is about 495.6601658395. The cubic root of 245679 is about 62.6309998993.

Adding to 245679 its reverse (976542), we get a palindrome (1222221).

The spelling of 245679 in words is "two hundred forty-five thousand, six hundred seventy-nine".