42789359 has 2 divisors, whose sum is σ = 42789360. Its totient is φ = 42789358.

The previous prime is 42789287. The next prime is 42789377. The reversal of 42789359 is 95398724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42789359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42789389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21394679 + 21394680.

It is an arithmetic number, because the mean of its divisors is an integer number (21394680).

Almost surely, 2^42789359 is an apocalyptic number.

42789359 is a deficient number, since it is larger than the sum of its proper divisors (1).

42789359 is an equidigital number, since it uses as much as digits as its factorization.

42789359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 42789359 is about 6541.3575808084. The cubic root of 42789359 is about 349.7668079326.

The spelling of 42789359 in words is "forty-two million, seven hundred eighty-nine thousand, three hundred fifty-nine".