611288879 has 2 divisors, whose sum is σ = 611288880. Its totient is φ = 611288878.

The previous prime is 611288861. The next prime is 611288891. The reversal of 611288879 is 978882116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611288879 - 2²⁰ = 610240303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611288809) 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, 305644439 + 305644440.

It is an arithmetic number, because the mean of its divisors is an integer number (305644440).

Almost surely, 2^611288879 is an apocalyptic number.

611288879 is a deficient number, since it is larger than the sum of its proper divisors (1).

611288879 is an equidigital number, since it uses as much as digits as its factorization.

611288879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 50.

The square root of 611288879 is about 24724.2568947987. The cubic root of 611288879 is about 848.6895049076.

It can be divided in two parts, 61128 and 8879, that added together give a palindrome (70007).

The spelling of 611288879 in words is "six hundred eleven million, two hundred eighty-eight thousand, eight hundred seventy-nine".