612408211 has 2 divisors, whose sum is σ = 612408212. Its totient is φ = 612408210.

The previous prime is 612408197. The next prime is 612408257. The reversal of 612408211 is 112804216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612408211 - 2⁹ = 612407699 is a prime.

It is not a weakly prime, because it can be changed into another prime (612408271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306204105 + 306204106.

It is an arithmetic number, because the mean of its divisors is an integer number (306204106).

Almost surely, 2^612408211 is an apocalyptic number.

612408211 is a deficient number, since it is larger than the sum of its proper divisors (1).

612408211 is an equidigital number, since it uses as much as digits as its factorization.

612408211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 612408211 is about 24746.8828542101. The cubic root of 612408211 is about 849.2072012675.

The spelling of 612408211 in words is "six hundred twelve million, four hundred eight thousand, two hundred eleven".