69427 has 2 divisors, whose sum is σ = 69428. Its totient is φ = 69426.

The previous prime is 69403. The next prime is 69431. The reversal of 69427 is 72496.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69427 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 69395 and 69404.

It is not a weakly prime, because it can be changed into another prime (69457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34713 + 34714.

It is an arithmetic number, because the mean of its divisors is an integer number (34714).

2⁶⁹⁴²⁷ is an apocalyptic number.

69427 is a deficient number, since it is larger than the sum of its proper divisors (1).

69427 is an equidigital number, since it uses as much as digits as its factorization.

69427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 69427 is about 263.4900377623. The cubic root of 69427 is about 41.1000925480.

It can be divided in two parts, 69 and 427, that added together give a triangular number (496 = T₃₁).

The spelling of 69427 in words is "sixty-nine thousand, four hundred twenty-seven".