427392029 has 2 divisors, whose sum is σ = 427392030. Its totient is φ = 427392028.

The previous prime is 427391999. The next prime is 427392041. The reversal of 427392029 is 920293724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294911929 + 132480100 = 17173^2 + 11510^2 .

It is a cyclic number.

It is not a de Polignac number, because 427392029 - 2²⁸ = 158956573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 427391983 and 427392001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427392079) 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, 213696014 + 213696015.

It is an arithmetic number, because the mean of its divisors is an integer number (213696015).

Almost surely, 2^427392029 is an apocalyptic number.

It is an amenable number.

427392029 is a deficient number, since it is larger than the sum of its proper divisors (1).

427392029 is an equidigital number, since it uses as much as digits as its factorization.

427392029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 427392029 is about 20673.4619500460. The cubic root of 427392029 is about 753.2552016279.

The spelling of 427392029 in words is "four hundred twenty-seven million, three hundred ninety-two thousand, twenty-nine".