246820649 has 2 divisors, whose sum is σ = 246820650. Its totient is φ = 246820648.

The previous prime is 246820627. The next prime is 246820661. The reversal of 246820649 is 946028642.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218005225 + 28815424 = 14765^2 + 5368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246820649 is a prime.

It is not a weakly prime, because it can be changed into another prime (246820619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123410324 + 123410325.

It is an arithmetic number, because the mean of its divisors is an integer number (123410325).

Almost surely, 2^246820649 is an apocalyptic number.

It is an amenable number.

246820649 is a deficient number, since it is larger than the sum of its proper divisors (1).

246820649 is an equidigital number, since it uses as much as digits as its factorization.

246820649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 246820649 is about 15710.5266939081. The cubic root of 246820649 is about 627.2786362246.

The spelling of 246820649 in words is "two hundred forty-six million, eight hundred twenty thousand, six hundred forty-nine".