245998679 has 2 divisors, whose sum is σ = 245998680. Its totient is φ = 245998678.

The previous prime is 245998673. The next prime is 245998691. The reversal of 245998679 is 976899542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245998679 - 2¹⁶ = 245933143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245998673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122999339 + 122999340.

It is an arithmetic number, because the mean of its divisors is an integer number (122999340).

Almost surely, 2^245998679 is an apocalyptic number.

245998679 is a deficient number, since it is larger than the sum of its proper divisors (1).

245998679 is an equidigital number, since it uses as much as digits as its factorization.

245998679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 59.

The square root of 245998679 is about 15684.3450293597. The cubic root of 245998679 is about 626.5815340378.

The spelling of 245998679 in words is "two hundred forty-five million, nine hundred ninety-eight thousand, six hundred seventy-nine".