42327629 has 2 divisors, whose sum is σ = 42327630. Its totient is φ = 42327628.

The previous prime is 42327587. The next prime is 42327631. The reversal of 42327629 is 92672324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25270729 + 17056900 = 5027^2 + 4130^2 .

It is a cyclic number.

It is not a de Polignac number, because 42327629 - 2²⁰ = 41279053 is a prime.

Together with 42327631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42327529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21163814 + 21163815.

It is an arithmetic number, because the mean of its divisors is an integer number (21163815).

Almost surely, 2^42327629 is an apocalyptic number.

It is an amenable number.

42327629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42327629 is an equidigital number, since it uses as much as digits as its factorization.

42327629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 42327629 is about 6505.9687211053. The cubic root of 42327629 is about 348.5041713425.

The spelling of 42327629 in words is "forty-two million, three hundred twenty-seven thousand, six hundred twenty-nine".