216413719 has 2 divisors, whose sum is σ = 216413720. Its totient is φ = 216413718.

The previous prime is 216413713. The next prime is 216413741. The reversal of 216413719 is 917314612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216413719 - 2²¹ = 214316567 is a prime.

It is a super-2 number, since 2×216413719² = 93669795542821922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216413713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108206859 + 108206860.

It is an arithmetic number, because the mean of its divisors is an integer number (108206860).

Almost surely, 2^216413719 is an apocalyptic number.

216413719 is a deficient number, since it is larger than the sum of its proper divisors (1).

216413719 is an equidigital number, since it uses as much as digits as its factorization.

216413719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 216413719 is about 14711.0067296565. The cubic root of 216413719 is about 600.3828288330.

The spelling of 216413719 in words is "two hundred sixteen million, four hundred thirteen thousand, seven hundred nineteen".