611791967 has 2 divisors, whose sum is σ = 611791968. Its totient is φ = 611791966.

The previous prime is 611791933. The next prime is 611791969. The reversal of 611791967 is 769197116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611791967 - 2¹⁰ = 611790943 is a prime.

Together with 611791969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611791969) 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, 305895983 + 305895984.

It is an arithmetic number, because the mean of its divisors is an integer number (305895984).

Almost surely, 2^611791967 is an apocalyptic number.

611791967 is a deficient number, since it is larger than the sum of its proper divisors (1).

611791967 is an equidigital number, since it uses as much as digits as its factorization.

611791967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 47.

The square root of 611791967 is about 24734.4287785265. The cubic root of 611791967 is about 848.9222636156.

The spelling of 611791967 in words is "six hundred eleven million, seven hundred ninety-one thousand, nine hundred sixty-seven".