42773429 has 2 divisors, whose sum is σ = 42773430. Its totient is φ = 42773428.

The previous prime is 42773417. The next prime is 42773447. The reversal of 42773429 is 92437724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 17623204 = 5015^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 42773429 - 2⁴ = 42773413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42773392 and 42773401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42733429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21386714 + 21386715.

It is an arithmetic number, because the mean of its divisors is an integer number (21386715).

Almost surely, 2^42773429 is an apocalyptic number.

It is an amenable number.

42773429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42773429 is an equidigital number, since it uses as much as digits as its factorization.

42773429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 42773429 is about 6540.1398303094. The cubic root of 42773429 is about 349.7233977876.

The spelling of 42773429 in words is "forty-two million, seven hundred seventy-three thousand, four hundred twenty-nine".