42867841 has 2 divisors, whose sum is σ = 42867842. Its totient is φ = 42867840.

The previous prime is 42867827. The next prime is 42867893. The reversal of 42867841 is 14876824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 12397441 = 5520^2 + 3521^2 .

It is a cyclic number.

It is not a de Polignac number, because 42867841 - 2¹⁷ = 42736769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42867794 and 42867803.

It is not a weakly prime, because it can be changed into another prime (42867821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21433920 + 21433921.

It is an arithmetic number, because the mean of its divisors is an integer number (21433921).

Almost surely, 2^42867841 is an apocalyptic number.

It is an amenable number.

42867841 is a deficient number, since it is larger than the sum of its proper divisors (1).

42867841 is an equidigital number, since it uses as much as digits as its factorization.

42867841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 40.

The square root of 42867841 is about 6547.3537402526. The cubic root of 42867841 is about 349.9805186436.

The spelling of 42867841 in words is "forty-two million, eight hundred sixty-seven thousand, eight hundred forty-one".