245627647 has 2 divisors, whose sum is σ = 245627648. Its totient is φ = 245627646.

The previous prime is 245627633. The next prime is 245627659. The reversal of 245627647 is 746726542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245627647 - 2¹¹ = 245625599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245627617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122813823 + 122813824.

It is an arithmetic number, because the mean of its divisors is an integer number (122813824).

Almost surely, 2^245627647 is an apocalyptic number.

245627647 is a deficient number, since it is larger than the sum of its proper divisors (1).

245627647 is an equidigital number, since it uses as much as digits as its factorization.

245627647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 43.

The square root of 245627647 is about 15672.5124660981. The cubic root of 245627647 is about 626.2663578475.

It can be divided in two parts, 2456 and 27647, that added together give a palindrome (30103).

The spelling of 245627647 in words is "two hundred forty-five million, six hundred twenty-seven thousand, six hundred forty-seven".