246700639 has 2 divisors, whose sum is σ = 246700640. Its totient is φ = 246700638.

The previous prime is 246700609. The next prime is 246700661. The reversal of 246700639 is 936007642.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246700639 is a prime.

It is a super-2 number, since 2×246700639² = 121722410566016642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 246700598 and 246700607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246700609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123350319 + 123350320.

It is an arithmetic number, because the mean of its divisors is an integer number (123350320).

Almost surely, 2^246700639 is an apocalyptic number.

246700639 is a deficient number, since it is larger than the sum of its proper divisors (1).

246700639 is an equidigital number, since it uses as much as digits as its factorization.

246700639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 246700639 is about 15706.7068158796. The cubic root of 246700639 is about 627.1769538712.

The spelling of 246700639 in words is "two hundred forty-six million, seven hundred thousand, six hundred thirty-nine".