611428429 has 2 divisors, whose sum is σ = 611428430. Its totient is φ = 611428428.

The previous prime is 611428427. The next prime is 611428451. The reversal of 611428429 is 924824116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585398025 + 26030404 = 24195^2 + 5102^2 .

It is a cyclic number.

It is not a de Polignac number, because 611428429 - 2¹ = 611428427 is a prime.

Together with 611428427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611428421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305714214 + 305714215.

It is an arithmetic number, because the mean of its divisors is an integer number (305714215).

Almost surely, 2^611428429 is an apocalyptic number.

It is an amenable number.

611428429 is a deficient number, since it is larger than the sum of its proper divisors (1).

611428429 is an equidigital number, since it uses as much as digits as its factorization.

611428429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 611428429 is about 24727.0788610382. The cubic root of 611428429 is about 848.7540819095.

It can be divided in two parts, 6114 and 28429, that added together give a palindrome (34543).

The spelling of 611428429 in words is "six hundred eleven million, four hundred twenty-eight thousand, four hundred twenty-nine".