247406413 has 2 divisors, whose sum is σ = 247406414. Its totient is φ = 247406412.

The previous prime is 247406399. The next prime is 247406437. The reversal of 247406413 is 314604742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218655369 + 28751044 = 14787^2 + 5362^2 .

It is a cyclic number.

It is not a de Polignac number, because 247406413 - 2⁹ = 247405901 is a prime.

It is a super-2 number, since 2×247406413² = 122419866387053138, which contains 22 as substring.

It is a zygodrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247406113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123703206 + 123703207.

It is an arithmetic number, because the mean of its divisors is an integer number (123703207).

Almost surely, 2^247406413 is an apocalyptic number.

It is an amenable number.

247406413 is a deficient number, since it is larger than the sum of its proper divisors (1).

247406413 is an equidigital number, since it uses as much as digits as its factorization.

247406413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 247406413 is about 15729.1580512118. The cubic root of 247406413 is about 627.7744712304.

The spelling of 247406413 in words is "two hundred forty-seven million, four hundred six thousand, four hundred thirteen".