611340439 has 2 divisors, whose sum is σ = 611340440. Its totient is φ = 611340438.

The previous prime is 611340293. The next prime is 611340467. The reversal of 611340439 is 934043116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611340439 - 2²¹ = 609243287 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611340439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611340469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305670219 + 305670220.

It is an arithmetic number, because the mean of its divisors is an integer number (305670220).

Almost surely, 2^611340439 is an apocalyptic number.

611340439 is a deficient number, since it is larger than the sum of its proper divisors (1).

611340439 is an equidigital number, since it uses as much as digits as its factorization.

611340439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 611340439 is about 24725.2995735138. The cubic root of 611340439 is about 848.7133655307.

The spelling of 611340439 in words is "six hundred eleven million, three hundred forty thousand, four hundred thirty-nine".