427722829 has 2 divisors, whose sum is σ = 427722830. Its totient is φ = 427722828.

The previous prime is 427722811. The next prime is 427722853. The reversal of 427722829 is 928227724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366914025 + 60808804 = 19155^2 + 7798^2 .

It is a cyclic number.

It is not a de Polignac number, because 427722829 - 2⁵ = 427722797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427722809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213861414 + 213861415.

It is an arithmetic number, because the mean of its divisors is an integer number (213861415).

Almost surely, 2^427722829 is an apocalyptic number.

It is an amenable number.

427722829 is a deficient number, since it is larger than the sum of its proper divisors (1).

427722829 is an equidigital number, since it uses as much as digits as its factorization.

427722829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 43.

The square root of 427722829 is about 20681.4609977148. The cubic root of 427722829 is about 753.4494905119.

The spelling of 427722829 in words is "four hundred twenty-seven million, seven hundred twenty-two thousand, eight hundred twenty-nine".