246626641 has 2 divisors, whose sum is σ = 246626642. Its totient is φ = 246626640.

The previous prime is 246626617. The next prime is 246626657. The reversal of 246626641 is 146626642.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246615616 + 11025 = 15704^2 + 105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246626641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 246626641.

It is not a weakly prime, because it can be changed into another prime (246626741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123313320 + 123313321.

It is an arithmetic number, because the mean of its divisors is an integer number (123313321).

Almost surely, 2^246626641 is an apocalyptic number.

It is an amenable number.

246626641 is a deficient number, since it is larger than the sum of its proper divisors (1).

246626641 is an equidigital number, since it uses as much as digits as its factorization.

246626641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 246626641 is about 15704.3510212934. The cubic root of 246626641 is about 627.1142402366.

Subtracting from 246626641 its reverse (146626642), we obtain a palindrome (99999999).

The spelling of 246626641 in words is "two hundred forty-six million, six hundred twenty-six thousand, six hundred forty-one".