42796289 has 2 divisors, whose sum is σ = 42796290. Its totient is φ = 42796288.

The previous prime is 42796283. The next prime is 42796291. The reversal of 42796289 is 98269724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42354064 + 442225 = 6508^2 + 665^2 .

It is a cyclic number.

It is not a de Polignac number, because 42796289 - 2¹² = 42792193 is a prime.

Together with 42796291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42796283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21398144 + 21398145.

It is an arithmetic number, because the mean of its divisors is an integer number (21398145).

Almost surely, 2^42796289 is an apocalyptic number.

It is an amenable number.

42796289 is a deficient number, since it is larger than the sum of its proper divisors (1).

42796289 is an equidigital number, since it uses as much as digits as its factorization.

42796289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 42796289 is about 6541.8872659195. The cubic root of 42796289 is about 349.7856892089.

The spelling of 42796289 in words is "forty-two million, seven hundred ninety-six thousand, two hundred eighty-nine".