42929 has 2 divisors, whose sum is σ = 42930. Its totient is φ = 42928.

The previous prime is 42923. The next prime is 42937. The reversal of 42929 is 92924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21904 + 21025 = 148^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 42929 - 2¹² = 38833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42898 and 42907.

It is not a weakly prime, because it can be changed into another prime (42923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21464 + 21465.

It is an arithmetic number, because the mean of its divisors is an integer number (21465).

2⁴²⁹²⁹ is an apocalyptic number.

It is an amenable number.

42929 is a deficient number, since it is larger than the sum of its proper divisors (1).

42929 is an equidigital number, since it uses as much as digits as its factorization.

42929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 42929 is about 207.1931466048. The cubic root of 42929 is about 35.0146877130.

The spelling of 42929 in words is "forty-two thousand, nine hundred twenty-nine".